"Muff" (and longer phrases built on it) is informal slang for the vulva, the external genitals, and often specifically for pubic hair. It's a playful, slightly cheeky word, not a medical term and not a product.
What the Term Means
People usually use "muff" for the soft, often hair-covered area over the pubic mound, or for the vulva as a whole. The image comes from the fur hand-warmer of the same name. Compound versions that stick a second slang word in front of it mean the same thing; they just sound blunter.
A quick anatomy note, because slang tends to blur it: the vulva is everything on the outside (the mons pubis, labia, clitoral glans and hood, and the openings of the urethra and vagina). The vagina is the internal canal. Most slang that gets called "slang for vagina", including this term, actually refers to the vulva.
Origin and How It's Used
"Muff" has been used this way in English for centuries, so it's far from a new invention. Today you'll mostly hear it in jokes, flirting, and casual chat between people who are comfortable with each other. It also turns up in "muff diving", an old-fashioned, jokey phrase for oral sex on a vulva.
How it lands depends on tone and context. Between partners or close friends it can feel affectionate and silly. From a stranger, a coworker, or anyone who hasn't been invited into that kind of conversation, it can come across as crude or harassing.
Similar Slang Terms
English has a huge number of nicknames for the vulva. Some are cutesy or euphemistic ("hoo-ha", "vajayjay", "coochie", "down there"), some are playful, and some are widely seen as offensive or are used as insults. The same word can feel warm in one relationship and degrading in another. If you're not sure how a word will land, the anatomical terms (vulva, labia, clitoris, vagina) are always fine, and in a medical setting they're the clearest choice.
Feelings, Communication and Consent
Words for genitals carry a lot of feeling. One person loves a bit of playful dirty talk, while another winces at any slang at all. Neither is wrong. A few sex-positive habits help:
- Ask, don't assume. "What do you like to call it?" is a perfectly sexy question.
- Respect a no. If a partner doesn't like a word, drop it, without sulking or trying to talk them round.
- Keep context in mind. Something you both enjoy in bed may not be okay in public or around other people.
- Remember not every vulva owner is a woman. Trans and nonbinary people may have their own preferred words for their bodies, so follow their lead.
The same goes for pubic hair itself. Natural, trimmed, shaped, or removed are all valid personal choices, and nobody owes a partner a particular look.
Health and Safety Notes
A slang word doesn't come with health benefits, and no product sold under a cute name can "fix" the vulva or vagina. If you notice dryness, pain during sex, itching, unusual discharge, or changes around menopause or after giving birth, talk to a doctor or gynecologist. A good water- or silicone-based lubricant can make sex more comfortable in the meantime. If you remove pubic hair, use a clean, sharp razor or a method you've tested on a small patch first, and let irritated skin heal before sex. For oral sex, a dental dam lowers the risk of passing on STIs.
| Term | Muff (and compound slang versions) |
| Meaning | The vulva and/or pubic hair |
| Register | Informal; ranges from playful to crude depending on context |
| Anatomical term | Vulva (external); vagina is the internal canal |
| Use it when | Everyone involved is comfortable with it |
