When used as an adjective, bitch please describes a quality such that one knows the subject is immature, stupid, or takes its outrageousness too seriously, and yet is somehow still viscerally cool. A good example of the feeling one might get from a bitch please situation would be bitch-slapping a motherfucker again and again at a large social gathering, and then finishing the beat-down by fadonking him in front of his grandparents.
Note: because of the origin of bitch please amongst inner-city prostitution rings, it always carries a connotation of violence. If you hear bitch please, somebody is going to get owned.
A Tool: "Yo, Samuel L. Jackson, will you sign my "Snakes on a Plane" merch? You're totally sick, homedog. You wanna come chill at my crib?"
Samuel L. Jackson: "Bitch please."
You say: "Huh?! Bitch please"
Ho(e) says: "I'm sorry, but I couldn't get no money daddy!"
Pimp slaps her and says: "Bitch please! Now go get me my money!"
Josh:"Bitch please!!!" *raises hand*