slang One's buttocks. From Yiddish. You sit on your tookus all day and all evening, and then you wonder why you have such trouble losing weight. He needs a swift kick in the tookus to get his life in order!
slang, interjection I have no sympathy for the situation you are in or how you feel about it. "Tookus" is slang for the buttocks, derived from Yiddish. A: "When you said I'd be getting a car for my birthday, I didn't think it would be some beat-up old van like this!" B: "Well, tough tookus! You should be thankful to have a car at all!" A: "Ugh, I feel so horrible this morning." B: "Tough tookus. If you want to drink yourself silly, then that's the price you pay."
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.