A woman who is built and stacked, has curves in all the right places, has perfect body measurements in every dimension, a perfect figure, extremly beautiful, sassy, classy, foxy, and heavenly.
Basically, a perfect woman.
Refer to the song "She's A Bad Mama Jama".
Motherfucker (positive use): ie, One who jams your mama. Used because it was illegal to record profanity or play profanity on the radio. Similar equivalents include: geez = Jesus; dang = damn; frick = fuck.
when a drunk as girl comes back from a frat party in her halloween costume to her boyfriends dorm room. They have sex and she passes out in bed next to him. She ends up peeing in the bed on him. He gives her clothes to change into and they go back to sleep in the pee filled bed