How have you been? What is or has been happening? (A colloquial shortening of "what's up?") A: "Sup Randy? I haven't seen you in a while." B: "Ah, not too much, just getting by, you know."
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
interrog. What’s up?; What is happening?; What have you been doing? Hi! Tsup?
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.