*FLEX* is a phrase you type into poker chat boxes that indicates to the opponent your great strength, and the impending doom they face unless they choose to fold, leave the table, shut down their computer, and stick the monitor into an industrial trash compactor.
by Wally McMillan February 4, 2008
 Get the *FLEX*mug.
Get the *FLEX*mug. by skeptikalia July 4, 2011
 Get the No flexmug.
Get the No flexmug. by jeff cortin June 11, 2006
 Get the the flexmug.
Get the the flexmug. by ipr0 June 16, 2009
 Get the flexingmug.
Get the flexingmug. person 1: "im so dedicated to football, I just smashed out a great training sesh im so good. like the academy just made me pro u should've seen me repping the goals at training today . plus my brows r on fleek today. also did u know also there's a town in Germany called Burmeister."
person 2: "geez that guy is such a flexer, I bet his name is jai"
person 2: "geez that guy is such a flexer, I bet his name is jai"
by personwhoknowsalot March 30, 2020
 Get the flexmug.
Get the flexmug. by Jose el Culero y el padre May 6, 2018
 Get the flEXingmug.
Get the flEXingmug. by robblue6412 August 4, 2010
 Get the Flexingmug.
Get the Flexingmug.