also: こやつ
this guy; this person
Familiar and often derogatory way to refer to a person close to the speaker or in the immediate context. Can be used for 'he' or 'she' but carries a rough, casual tone.
See also: そいつ
This bastard lied again!
This guy is always late.
This guy is the culprit.
hey, you!; you bastard!
Derogatory interjection used to address someone directly with anger or contempt. Strongly offensive.
You bastard, how dare you trick me!
This guy is actually pretty capable.
こいつ points to someone near the speaker, while あいつ points to someone distant from both speaker and listener and often sounds even more contemptuous.
こいつ is a demonstrative pointing at a specific nearby person or thing, while 奴 is the plain word for 'guy' or 'thing' without built-in distance.
こいつ is the singular form referring to one person with the same derogatory/familiar tone, while こいつら is its plural.
こいつ points to someone or something near the speaker ('this guy/thing'), while あいつ points to someone or something distant from both speaker and listener ('that guy/thing').
Standard kana spelling; the word is usually written in kana.
Archaic reading; not used in modern Japanese.
Rarely used kanji form; learners should use the kana spelling.
Derived from こ (this) + やつ (guy, fellow), with the reading contracted to こいつ. The archaic reading こやつ preserves the older form.