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duck butter

(slang, vulgar) Sweat, smegma, or semen found on or around the penis, testicles, or perineum.

ˈdʌk ˈbʌtɚDocumented since 1970s1970sGen Xhistorical77 viewsLast reviewed Jun 29, 2026+ Add a definition
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Born ~1973 · no dated citations yet
1973BornToday, 2026
Boomer / counterculture eraSee decade cohort →

Definitions

#1·Apr 27, 2026

(slang, vulgar) Sweat, smegma, or semen found on or around the penis, testicles, or perineum.

Origin: Unclear. Perhaps a corruption of dick, or from the use of duck in sexual slang. Attested since at least 1973. Origin information sourced from Wiktionary contributors (CC BY-SA 4.0).
For parents

"duck butter" means: Sweat, smegma, or semen found on or around the penis, testicles, or perineum.. The term has a sexual reference, so parents may want to know the context in which a child uses or hears it. In most cases it is part of normal teenage curiosity rather than a concrete worry. A short, non-judgemental conversation about consent, respect and online safety is usually the best response. Look at the wider pattern of behaviour, not the one word.

For ESL learners

"duck butter" means: Sweat, smegma, or semen found on or around the penis, testicles, or perineum.. Register: informal slang, fine in casual conversation, texting and social media but not in academic essays, business writing or formal speech. A common non-native mistake is to use the word in the wrong register, or to assume one fixed meaning when it is actually polysemous; always check the surrounding register and the audience before producing it yourself. In formal writing, prefer a neutral synonym or a short descriptive phrase, and use this word only when you have heard or read it being used naturally in a comparable context.

Cluster: anatomy
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For specific readers

"duck butter" means: Sweat, smegma, or semen found on or around the penis, testicles, or perineum.. The term has a sexual reference, so parents may want to know the context in which a child uses or hears it. In most cases it is part of normal teenage curiosity rather than a concrete worry. A short, non-judgemental conversation about consent, respect and online safety is usually the best response. Look at the wider pattern of behaviour, not the one word.

Why is this section here?

Slang is read by different audiences for very different reasons. The For parents view re-explains the term in plain, non-judgemental language so a caregiver can understand what their child means without needing the surrounding subculture. The For English learners view focuses on register (when it's safe to use), formal alternatives, and common mistakes — what a textbook won't teach you.

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