When you fart, but the air comes up over your taint and tickles your balls or girly parts.
Oohhh! I just had a taint bubble! Lucky I had boxers on!
by thamongrel May 11, 2008
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When you are sitting in class, and try to slowly let a fart out, but the fart concentrates into a bubble and slowly slides from your butthole across your taint and pops right before your balls.
I was taking a test in Mrs. Russels class, and i had to let one rip. I slowly let off a fart, but to my fears it became a massive taint bubble. luckily it popped without sound and the class was none the wiser.
by RyanMP July 16, 2013
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