rude slang A humorous spelling of "the fuck," used primarily in online communications, such as forums, instant messaging, social media, etc. A: "And then he says he's got a girlfriend!" B: "Dafuq? What a creep!" OK, UR an hour late. Where dafuq R U?
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.