This used to be a way of calling someone out for being unnecessarily angry but now it's just used for when people are being roasted to the core and they have nothing else to say.
Person 1: White people invented slavery.
Person 2: Humans invented slavery and it's unknown to which race has enslaved who first, nor does it matter.
Person 1: You mad?
Person 2: No, I'm just correcting your mistake.
Person 1: Yeah, you mad ￣︶￣
Person 2: Humans invented slavery and it's unknown to which race has enslaved who first, nor does it matter.
Person 1: You mad?
Person 2: No, I'm just correcting your mistake.
Person 1: Yeah, you mad ￣︶￣
by Try Not To Cry January 30, 2021
Get the You mad?mug. by M.F.jones July 4, 2016
Get the Mad-flowmug. by Dave1026 July 30, 2007
Get the mad in the footmug. by Diesel July 27, 2003
Get the Mad Nicemug. 
When someone pursues someone else romantically
Mo: Did you hear what happened with John and Diana?!
Ali: Yeah! I heard John was moving mad to Diana!
Ali: Yeah! I heard John was moving mad to Diana!
by Yooooooooooo Man March 9, 2022
Get the moving madmug. "I'm Rubeus fuckin' Hagrid, I'm mad and hairy, I'm a cunt, I'm keeper of coke at Hogwarts." -- Mad Hagrid
by XXXXYYYY March 29, 2022
Get the Mad Hagridmug.