One word for saying "whats up with you" it can be used as both a greeting and a question.
1.(A texts B)
A sends: Supwitcha?!
B replies: Shit, just chillin, supwitcha?!!!
A: Same ol same ol, tryna get this bread.
2. (Two friends hanging out)
A: Its been along time since I've seen you supwitcha these dayz?
B: Nothing jus working and going to school!