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1.
1. Typically a greeting by a black male to a homie. Commonly used in the exchange of goods or services.

2. Said from a father to a son, usually when the son has fallen upon the father's lap.
1. Man approaches the register. Clerk asks, "What it is son?"

2. Son: Dad, I need to talk to you about something.
Dad: What it is son? And wasssssssup?
by Steven Muntner *see RAT-MAN February 28, 2005