bad up (third-person singular simple present bads up, present participle badding up, simple past and past participle badded up)
- (slang, transitive) To badmouth; criticise or malign
2019, Stormzy, Vossi Bop:I ain't gotta be a rapper with a chain
'Cause the rules are kinda different when you're baddin' up the game.
2019, Lanco Da Cartel, Winona:So I'm mergin' on the express because the fiends they urgin'
Couldn't bad me up before and I'm not a different person
2008, Giggs, Rat-A-Tat-Tat:Niggas say I bad him up, but they hating.