gumbumpin'

Slang for eating; originated from watching old people eat food without their dentures.
That home made banana pudding was some good gumbumpin'!
by Apexer August 07, 2009
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mugGet the gumbumpin'mug.

Gumbumpin

Getting a blowjob from someone without teeth.
That granny Smith over yonder sure good at gumbumpin.
by Maddog936 August 08, 2018
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mugGet the Gumbumpinmug.
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