expression, godan verb (-u)
make snide remarks; say sarcastic things
Used when someone makes indirect, unpleasant, or sarcastic comments, often to criticize or annoy. The second gloss 'to put into bad mood' reflects the effect rather than a separate meaning.
彼はいつも嫌味を言うから、あまり話したくない。
He always makes snide remarks, so I don't really want to talk to him.
そんな嫌味を言わないでください
Please don't say such sarcastic things.