1. When a male has an erection that is only half up, creating a little bump in the genital region of a male's pants around the region of the penis.
2. When a male can not fully perform, making the girl, and or prostitute very disappointed.
Guy1: Look at that hot girl.
Guy2: LOL she gave you a little michael
Guy1: WHAT?! NO!
Guy: I can't seem to get it fully inflated.
Girl: You must have a little michael.
Guy: Can I get my money back and try to come back on a better day?