expression
won't do (for me)
Colloquial contraction of くれない, used after the -te form of a verb to express that someone won't do something for the speaker. Carries a sense of complaint or disappointment.
See also: くれる
手伝ってくんないの？
Won't you help me?
彼、全然話を聞いてくんないんだ。
He just won't listen to me at all.