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Jap's eye

(British, slang, vulgar, offensive) The urethral opening of the penis; the male urethral meatus.

ˈd͡ʒæps ˈaɪ53 viewsLast reviewed Jun 29, 2026+ Add a definition
🇬🇧 British & Irish slang
1 definition
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UK
#1·Apr 27, 2026UK

(British, slang, vulgar, offensive) The urethral opening of the penis; the male urethral meatus.

Origin: From the supposedly slitlike eyes of the Japanese. Origin information sourced from Wiktionary contributors (CC BY-SA 4.0).
For parents

"Jap's eye" means: The urethral opening of the penis; the male urethral meatus.. 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

"Jap's eye" means: The urethral opening of the penis; the male urethral meatus.. Register: informal slang, fine in casual conversation, texting and social media but not in academic essays, business writing or formal speech. Note the regional or dialect label (British) — usage may sound odd outside that variety. 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

Cluster: anatomy
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For specific readers

"Jap's eye" means: The urethral opening of the penis; the male urethral meatus.. 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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🇬🇧About British & Irish slang slang

UK and Irish slang — Cockney, Scouse, Geordie, Yorkshire, Glaswegian, Brummie, Welsh, West Country, plus Irish English. Centuries of regional dialects feeding into modern British and Irish street talk.

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