To speak of something you know nothing about. To spread rumors, gossip, or speculate without all of the facts. See also (Trash Talking) (gossiping). (hating)
by JVRAS August 06, 2011
Get a Gum Bumpin mug for your mama Larisa.
bumpin gums is talking shit about someone
man i heard you were bumpin gums you need to quit that shit
by brad paul October 15, 2005
Get a bumpin gums mug for your cousin Jerry.
Chopin it up. Discussin' a lil sumpin sumpin.
Me and her were bumpin' gums bout dat new ride dat boy got.
by TXNinSingapore February 17, 2009
Get a bumpin' gums mug for your mother-in-law Beatrix.