Top Definition
you know when you blow up a balloon and then pull the neck out so the air escapes with a long squealing shriek? Some people can do this with their butt!!
bruce did the biggest balloon fart i ever seen!
by Andrew Briggs January 31, 2004
when you fart and it sounds like a slowly deflating balloon
When trying to be discrete in class, Nadya Chu tried to let out silent fart, but let out a balloon fart instead.
by pixellen June 19, 2016
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