their asses

Pronoun

nominative objective personal plural pronoun slang third-person vulgar

(vulgar, slang, the third person plural) they (in the plural); them (in the plural); themselves (in the plural).

Japanese Meaning

彼ら（複数の人々を指す俗語的な表現） / 彼らを（目的格としての用法） / 彼ら自身（再帰代名詞的な意味合い）

No matter how late it gets, you can always find their asses at the bar.

どれだけ遅くなっても、あいつらはいつもバーにいるよ。

Sense（1）

(vulgar, slang, the third person plural) they (in the plural); them (in the plural); themselves (in the plural).

Their asses are always late.