Tough Nut Share definition Flag When you're having sex with someone you find unattractive and therefore have a difficult time climaxing. Yeah, I took the last chick in the bar home last night. I got some, but it was a tough nut. Tough Nut by Lewd Boggs June 24, 2019 0 0 Get merch Get the Tough Nut mug. Buy Now — $32.95 See more merch