1 definition by Curtis and Matt

Top Definition
The act of burping into a girl's vag while proforming oral sex. Her uterous then expands to an enormous size causing her great pain. This often happens when the male has eaten KFC causing him to increase his burping frequency.
"Fuck, my boyfriend gave me a hard core ballooning and it hurt like no other."

What were you doing the other day, Curtis? "Oh I was just ballooning some whore."
by Curtis and Matt December 10, 2010
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