Top Definition
the act of tripping, and doing a face plant into a female's breasts. Quite fun and delivers quick erections.
Frank: Hey, Lasahuchahikamarodecimanda! Let's do some TB-ing!
Lasahuchahikamarodecimanda: Okay! There's a hot girl right to the left.
*both trip and land with faces in girl's boobs*
Girl: Onoez, sick TB-ers!
by r0lb April 12, 2006
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