Top Definition
Where two people put a tube in each other butts and fart. Sharing each other farts.
Yo me and my boyfriend bought this tube at Home Depot and then went out for Mexican and later we were butt tubing
by Fart master flash November 29, 2013

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

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The Urban Dictionary Mug

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