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Refers to a clumsy person with a distinct lack of coordination with his hands.
He's such a thumbo, he cant catch a pass to save his ass.
by upriverman March 02, 2004
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3
Typo's created with your thumb while writing on a mobile device.
I was tired, typing so fast on that slick mobile gadget that the text was probably so full of thumbo's as to become completely inelligible.
by Rapnie March 29, 2019
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