A polite refusal of something. (Despite being polite in form, it can be used in an impolite manner.) A: "Would you like some Brussels sprouts?" B: "No, thanks. I don't care for them." A: "You're saying you wouldn't go to the prom with Charlie?" B: "Ew, gross—no, thanks!"
See also: thanks
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.