You want a piece of me?

(do) you want a piece of me?

Do you want to get into a fistfight with me? Do you want to try to take me on in a fight? What are you looking at, punk? Do you want a piece of me? A: "Ah, you're not so tough." B: "Oh, is that right? You want a piece of me, then?"
See also: of, piece, want
Farlex Dictionary of Idioms.

(You) want a piece of me?

interrog. Do you want to fight with me? Come on, Wussy. You want a piece of me?
See also: of, piece, want
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • (do) you want a piece of me?
  • want a piece of me?
  • (you) wanna piece of me?
  • (You) want to step outside?
  • You want to step outside?
  • (You) wanna step outside?
  • slugfest
  • (all) of a piece
  • all of a piece
  • of a piece