The act of talking to much. Espescially about what one is going to do or has done, but never doing or being about whats talked so much about. Originated in Oakland, CA.
My dead beat baby's daddy don't ever do shit for him. He's just always coming around bumping them gums, but never doing shit!
by Demicci D. Dior-Britt November 1, 2007
Get the bumping them gums mug.