noun
complaint; objection; finding fault
Colloquial noun for a complaint, often implying a petty or unreasonable objection. Frequently used in the phrase いちゃもんをつける (to pick a fight or find fault).
彼はいつもささいなことにいちゃもんをつける。
He always finds fault with trivial things.
そんなことでいちゃもんをつけられても困る。
I don't know what to do when you pick on me for something like that.
Katakana variant used for emphasis or in casual writing.
The origin is uncertain. It may be related to the dialectal word いちゃ (quarrel) combined with 物 (もの), but the exact derivation is unclear.