notadictionary.com
いつか昔、上司に「ケツの穴が小さい奴だな」と言われた時…
→ “"Back in the day, my boss once told me, 'You're such a tight-ass'..."”
いつか itsuka = someday (adverb)
昔 mukashi = long ago / back in the day (noun)
上司 jō¹shi = boss / superior (noun)
上 ue = above / higher
司 shi = to rule / director
に ni = by / to (particle indicating target of action)
ケツ ketsu = butt / anus (slang noun)
の no = 's / of (possessive particle)
穴 ana = hole (noun)
が ga = subject marker (particle)
小さい chiisai = small (i-adjective)
小 ko = small
大 oo = big
奴 yatsu = guy / fellow / person (informal noun)
だ da = is / to be (copula)
な na = emphatic sentence-ending particle (colloquial)
と to = quote marker (particle)
言われた iwareta = was said / was told (passive form of verb)
言 i = say / speak
わ wa = (historical passive marker)
れた reta = past tense suffix
時 toki = time / moment (noun)
… = ellipsis (indicates trailing off or suspense)
