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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
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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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