a large black woman that doesn't take shit from anyone and likes to fight.
"That big bad mama jama took on 6 cops before they finally got the handcuffs on her."
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".
Did you see that girl? She's a bad Mama Jama!