Circlusion: What It Means, Where It Comes From, Why It Matters
What is circlusion? The word Bini Adamczak coined in 2016 to describe enclosing rather than entering, where it comes from and how it can open up talk between partners.
2016the year Bini Adamczak coined circlusion in Berlin’s Missy Magazine
12,145people across 48 studies in a meta-analysis on couples’ sexual communication
95% vs 65%straight men vs straight women who usually or always orgasm with a partner
In short
- Circlusion means enclosing or surrounding, the mirror image of penetration.
- German writer Bini Adamczak proposed the word in 2016; Sophie Lewis translated it into English.
- It describes the same moment from the point of view of the partner who encloses, as the active one.
- For couples, it is an easy way into talking about roles, initiative and desire.
- It prescribes nothing: it simply adds a word you are free to use or ignore.
Maybe you saw the word circlusion in a magazine piece, a podcast or a group chat, and it stuck with you. What does it actually mean, and why do some couples say it changed the way they talk about intimacy? Circlusion is a recent word for something as old as humanity. It describes nothing new. What it changes is the point of view, and with it, who gets to be the main character of the story.
This guide covers where the term comes from, what it means and how it can open up better conversations between partners. If that conversation leads you to want to explore together, our roundup of toys designed to be shared by two is a gentle place to start.
What is circlusion? A simple definition
Circlusion is the act of enclosing or surrounding. In the original essay, translated by Sophie Lewis and republished by The New Inquiry, Bini Adamczak presents it as the antonym of penetration. Both words describe the same physical process, seen from opposite sides. Penetration focuses on what goes in. Circlusion focuses on what closes around.
The roots of the word make the idea clear. Circum means around in Latin, and claudere means to close. To circlude is to close around something.
The nut and bolt example
Adamczak uses a hardware analogy. Turning a bolt into a nut is penetration. Turning the nut onto the bolt is circlusion. The end result is identical; only the moving part changes, and so does the part we call active.
She lists other everyday examples: a net closing around fish, a hand wrapping around a bottle, a condom rolled onto a banana rather than the banana pushed into it. Nobody would call the hand holding the bottle passive.
Where does the word circlusion come from?
Bini Adamczak is a German writer known for her work on feminism, queer politics and communism. Her original German text, titled Come On, appeared in Berlin’s feminist Missy Magazine in March 2016. Writer and researcher Sophie Lewis translated it as On Circlusion for Mask Magazine that summer. When Mask shut down, the essay disappeared for a while, until The New Inquiry republished it in 2022, opening with a new introduction by Sophie Lewis.
Lewis’s introduction traces how far the word travelled. It was picked up by sex blogs, French Cosmopolitan and Le Monde, then by poets, essayists and artists. McKenzie Wark gave it a chapter, The Art of Circlusion, in her memoir Reverse Cowgirl. In the English-speaking world it remains mostly known in queer and feminist circles, which is why so many people meet it for the first time online.
Flipping the script on penetration
Adamczak argues that our vocabulary of intimacy revolves almost entirely around penetration. That one word quietly sorts bodies into two camps, the one who acts and the one who receives. In her view, this framing shapes the heterosexual imagination, and parts of queer and BDSM culture as well.
Circlusion supplies the missing half of the vocabulary. It lets you describe the very same moment from the perspective of the partner who encloses, so that receiving no longer has to mean being acted upon. She also notes that the meaning of a word is only ever set by how people use it. Her goal is to add an option, and leave the old word where it is.
What shifts when you see it this way
- Agency is shared. Both partners can describe themselves as active in the same moment.
- Initiative moves around. Suggesting, guiding and setting the pace stop being one person’s default job.
- Old connotations fade. Receiving is no longer framed as giving up control.
- The story gets wider. An intimate moment no longer has a single hero.
Circlusion and communication between partners
A word will not transform a relationship on its own. What it can do is give you a low-pressure way into topics many couples never discuss: who usually initiates, who sets the rhythm, what each of you would like to feel differently.
Talking about sex tends to go hand in hand with a more satisfying sex life. A 2019 meta-analysis in The Journal of Sex Research pooled 48 studies and 12,145 participants and found that sexual communication was positively linked with several aspects of sexual function, orgasm in particular. Lead author Allen Mallory told PsyPost that many of the effects were small and that the results are correlations: better communication may help, or a better sex life may make talking easier.
A gap that words can help you name
A large US study led by David Frederick, covering more than 52,000 adults and published in Archives of Sexual Behavior in 2018, then summarised by Cornell researcher Ritch Savin-Williams in Psychology Today, found a clear gap. 95% of heterosexual men said they usually or always orgasm during partnered sex, compared with 65% of heterosexual women. Women who orgasmed more often were also more likely to ask for what they wanted, to have longer sessions and to feel satisfied with their relationship.
Again, this is an association, not a formula. It is a reminder that intimacy is more than one act. Slowing down with foreplay you both enjoy matters as much as anything else, and talking about it helps each of you say what feels good.
Tip: read Adamczak’s essay, or any short piece about circlusion, at the same time as your partner. Then simply ask each other what surprised you. Starting from something you both read takes the pressure off talking about yourselves straight away.
How to bring up circlusion with your partner
Talking about circlusion does not mean anything has to change in the bedroom. The point is to put words on what you already share and check that both of you feel seen. A few pointers to keep it relaxed:
- Pick a neutral moment. A walk, a slow breakfast, a drive. Away from the bedroom, the talk stays light.
- Start with the idea, not a complaint. You came across a curious word and you wonder what your partner makes of it.
- Ask open questions. Who feels like the one who usually starts things? What would each of you like more of? If you need more ideas, we gathered prompts to get you both talking in a separate list.
- Listen without correcting. Your partner may find the word pointless or freeing. Both answers are fine.
- Leave room for no. Nothing has to change if one of you does not want it to. Consent applies at every stage, including the conversation.
If you have been feeling a little distant lately, this kind of talk can be one step in a wider effort to feel close to each other again. You will find more ideas in our Couple section.
Your health: if sex causes pain, burning or discomfort that keeps coming back, talk to a GP, a sexual health clinic or a gynaecologist. Pain during intimacy often has a cause that can be found and treated, and new vocabulary will not fix it.
What circlusion does not say
The word describes a perspective. It sets no rule about what a couple should do, or how anyone should feel. Some people find it eye-opening; others prefer the usual words, and that is completely fine.
Nor does it replace real dialogue. A concept can start the conversation; listening and respecting each other’s pace carry it forward. If the word makes you both smile, it has already done part of its job: making the subject easier to raise.
Circlusion FAQ
What does circlusion mean?
Circlusion means enclosing or surrounding. In a sexual context, it describes the same moment as penetration, from the point of view of the partner who encloses, framed as the active one.
Who invented the word circlusion?
German writer Bini Adamczak proposed it in 2016 in Missy Magazine. Sophie Lewis translated the essay into English the same year as On Circlusion.
What is the difference between penetration and circlusion?
Both words describe the same physical process. Penetration focuses on what goes in, circlusion on what closes around. Adamczak compares it to turning a bolt into a nut versus turning a nut onto a bolt.
Is circlusion a new sexual practice?
No. The word describes no new practice. It offers another way of looking at something people already do, so that both partners can see themselves as active.
How do I talk about circlusion with my partner?
Choose a calm moment, start from something you read or an open question, listen without judging and leave your partner free not to change anything.
