うんこ

From うん (un, the sound made when straining) +‎ こ (-ko, diminutive nominalizer).[1][2]

• (Tokyo) う​んこ [úꜜǹkò] (Atamadaka – [1])[2]
• IPA^(key): [ɯ̟̃ᵝŋko̞]

うんこ (katakana ウンコ, rōmaji unko)

1. (childish) poop, doo-doo, number two
   • 1996 February 20 [Feb 15 1988], Adachi, Mitsuru, “交差点前 [In Front of the Intersection]”, in SHORT PROGRAMショート・プログラム [SHORT PROGRAM], volume 1 (fiction), 25th edition, Tokyo: Shogakukan, →ISBN, page 57:

     どこ行 (い)くんだよ？克 (かつ)明 (あき)。

     Doko ikun da yo? Katsuaki.

     Where you going, Katsuaki?

     ウンコ！

     Unko!

     Number two!

   • 2010 January 9, Sorachi, Hideaki, “第だい二百七十五訓くん　捜さがしものをする時ときはそいつの目め線せんになって捜さがせ [Lesson 275: When You Look for Something, Look from Its Viewpoint]”, in 銀ぎん魂たま [Silver Soul], volume 32 (fiction), Tokyo: Shueisha, →ISBN:

     …俺 (おれ)達 (たち)？まさか…お前 (まえ)もここで立 (た)ちションした人 (にん)…間 (げん)？

     …Oretachi? Masaka… omae mo koko de tachishonshita nin…gen?

     …We? Hold on… did you take a piss here when you were hu…man too?

     立 (た)ちションじゃない　ウンコだ

     Tachishon ja nai unko da

     It wasn’t a piss, it was a dump

• This is an example of a word that can be spelled with katakana to convey an informal conversational tone, as ウンコ.
• An informal and somewhat childish word; compare the more formal 大便 (daiben).
• While うんこ (unko) is sometimes given as a literal translation of English interjection shit! as an expression of displeasure, this is inaccurate, as unko! sounds more like someone saying “Oh turd!” or “Oh doo-doo!” in English. Rather, the vulgar くそ (kuso, “shit, excrement”) or the less vulgar ちぇ (che, onomatopoeic interjection of displeasure) may be used, while the most common expression of displeasure is しまった (shimatta, “oops, uh-oh”, usually when it is one's own fault).

うんこする (rōmaji unko suru)

1. (childish) to poop, to poo, to go number two

• うんち (unchi, “poop”)
• 糞 (くそ) (kuso, “shit”)
• 大 (だい)便 (べん) (daiben, “stool”)