gumbumpin' 

Slang for eating; originated from watching old people eat food without their dentures.

That home made banana pudding was some good gumbumpin'!

gumbumpin' by Apexer August 7, 2009

Gumbumpin 

Getting a blowjob from someone without teeth.

That granny Smith over yonder sure good at gumbumpin.

Gumbumpin by Maddog936 August 8, 2018

Gum Bumpin

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)

I wasn't even there, see Joe's gum bumpin again!

Gum Bumpin by JVRAS August 6, 2011

Gumblumpkin 

The act of getting a blowjob from a girl with no teeth while sitting on the bowl taking a shit.

Your grandmother gives the best Gumblumpkin at the senior home.

Gumblumpkin by Big Mate July 17, 2011

gumbuffin 

a black and white muffin

my cat was black and white, so i named him "muffins", short for "gumbuffins"

gumbuffin by dan gregorich September 28, 2005