What's on your mug?

Frontin’ saying you did something you didn't do. Lying.

Man 1: I robbed this man last week Man2: Nahh you faking jacks Man 3 : Yeah aight you lying

By FreeAhkil

The original term comes from the crack game. It means to sell a crack fiend something other than crack. Instead of crack, it is substituted with soap, plaster or some other substance in order to steal the crack fiend's money.

Raheem sold me 4 Jums, but was soap. He is faking jacks

By Imjustsayinh

Half steppin on a robbery. Robbing someone and then giving them their things back on the spot. Then bragging about it.

Dude faking jacks.

By True Anlivin'