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bonk-on

Bonk-on is British slang for an erection — built on 'bonk', one of the UK's most cheerfully casual words for sex.

ˈbɑŋkənDocumented since 1970s1970sBoomerhistorical151 viewsLast reviewed Jun 29, 2026+ Add a definition
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Born ~1970 · no dated citations yet
1970BornToday, 2026
Boomer / counterculture eraSee decade cohort →

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#1·Apr 28, 2026

Bonk-on is British slang for an erection — built on 'bonk', one of the UK's most cheerfully casual words for sex. It's a very British construction that manages to take something that sounds juvenile and make it even more so, which is precisely the charm. You'll encounter it in British comedy, lad mag culture from the 90s and 2000s, and candid everyday conversation. It's crass but not aggressively vulgar by UK standards, where 'bonk' has always sat in the amusing-rather-than-shocking zone.

He had to stay seated for an extra ten minutes on the bus, thanks to a well-timed bonk-on.
Origin: From 'bonk', British slang for sexual intercourse (popularized in tabloid journalism from the 1970s onward), combined with 'on' as a suffix indicating a state of arousal. Editorial expansion authored on Slangora.
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#2·Apr 26, 2026

(UK, slang) An erection of the penis.

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