Translation guide
Describing or referring to a large penis in Japanese, from medical terms to slang.
Informal, often vulgar ways to say 'large penis' in everyday conversation or media.
Common slang for a huge penis. Literally 'giant root'. Used in casual, often sexual contexts.
I heard he has a huge dick.
Very casual, somewhat vulgar slang. 'Deka' means huge, 'chin' is slang for penis.
That guy's got a big dick, apparently.
Literally 'big dick'. Very direct and casual.
Have you ever seen a big dick?
Abbreviation of 巨根 + チン (slang for penis). Used in manga or online.
Characters with huge dicks are popular.
Polite or clinical ways to describe a large penis without vulgarity.
Direct, neutral phrase. 'Ōkii' means big, 'penisu' is the loanword for penis.
He has a large penis.
More clinical term. 'Danseiki' means male genitalia.
A natural sentence pattern: 'penis is big'. Often used in descriptions.
My boyfriend has a big penis.
Ways to imply a large penis without explicit words, often in jokes or polite company.
Direct translations like '大きい陰茎' (ōkii inkei) are overly clinical and rarely used outside medical texts. Stick to the options above for natural speech.
Words like 巨根 and デカチン are very casual and can be vulgar. Use 大きいペニス or euphemisms in polite conversation.
A large penis can sometimes cause problems.