UMAD
About
"U MAD?", sometimes written as "you mad?" or "u mad bro?", is a catchphrase that is often used in discussion threads to imply that someone is losing their temper during the course of an argument, sometimes taunting or baiting other posters into a flamewar. Due to the agitating nature of the phrase, it is often considered a form of trolling.
Origin
The phrase "You mad, 'cause I'm better than you!" is a dissing technique found in the context of hip hop music, with its roots in freestyle battling. The phrase can be often heard on "diss tracks" or songs primarily intended to disparage or insult others. The first image macro using the phrase featured the Harlem-based rapper Cam'Ron pointing off camera with the overlaid text "YOU MAD." The still image came from a segment on the Bill O'Reilly Show where Cam'Ron appeared with producer Damon Dash to debate whether or not rap was harmful to children in November 2003.
Spread
The first Urban Dictionary definition for the phrase "U Mad" was submitted by user Johnny Twoguns on August 13th, 2004, attributing the coinage to Cam'Ron. The same year, U-Mad.net was established as a personal homepage for an independent rap group. Between 2008 and 2009, the phrase became incredibly popular on BodyBuilding.com, where it was used in numerous threads. The phrase also seeped into other forums including My Anime List, Rune Tips, Real GM Basketball, Project 1999 and Portal Forums. In 2010, the first "u mad" single topic blog was launched on Tumblr and internet culture blog Urlesque asserted that "U Mad" was being replaced by "U Jelly".