Top Definition
The act of inserting one's thumb in an unsuspecting ass.
Tom: Man did you hear about Nik the other night?

Markus: Naw man what happened?

Tom: Got super tanked and thumbdoukened some beezy!

Markus: Whoa, bra that's fuckin sweet!
by Doctor Asshat, MD January 25, 2009

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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