to comply) to agree .the state of mindof seriousnesss to be with the cause. To show one’s seriousness and capability based on a situation.to agree with a statement.
Another phrase used in the black community with that or commonly used I’m with that. It means I’m down (willing
Who want to fight me? I’ll fight you. Man your not ready to go all out. I love to fight bro I’m really with that. Man you don’t want no promblems. True I’m with that I’m not going to lie I don’t.