Top definition
someone that is short and dumb!
Kiara: haley your 4 eight not 4 nine

Haley: no im 4 nine
Taylor: no cause im taller then you and im 4 nine!
Kiara: Haley your so short an aunt walked up to you and said wow im tall!
Taylor: ya thats true your tht small!
Haley: im short and dumb!
Taylor+Kiara+Rachael: your shumb!
Haley: yea im shumb!
by kiki0843 babyy May 12, 2009
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When you are wiping your ass and you get shit on the side of your thumb.
That dude came out of the bathroom stall and he had a Shumb and didn't even know it!
by Lizard boots and Lipshitz December 09, 2016
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