こいつ

こいつ
pronoun
this guy; this person; this thing (rough/informal)
informalpronounperson
1. this guy; this person (rough/informal)
an informal or rough pronoun referring to a person near the speaker
こいつが犯人(はんにん)だ。
This guy is the culprit.
こいつには困(こま)らされた。
This person gave me trouble.
こいつは面白(おもしろ)い奴(やつ)だ。
This guy is an interesting fellow.
2. this thing (informal)
used informally to refer to an object or situation near the speaker
こいつは使(つか)える。
This thing is useful.
こいつは厄介(やっかい)だな。
This is troublesome.
こいつをどうにかしないと。
I need to do something about this.

Register

Informal/rough. Can be contemptuous when referring to people.

Ko-so-a-do system

Part of the demonstrative pronoun system:

Writing

Can be written 此奴(こいつ) but usually in hiragana.

SENSE 2 (Things/Situations):
Commonly used in casual speech for objects, problems, or situations.

Polite alternatives

Related words

Related Words

Related: あいつ (that guy (distant))
Related: そいつ (that guy)
Related: どいつ (which guy)
general
Added 2026.1.25 18:58 · Revised 2026.9.2 13:01
08000/08268_koitsu