Urban Dictionary: Definitions by Centi the apothecary

Boston Balloon

A boston balloon is when you blow and burp into a willing partners butthole, pretending your blowing up a balloon.

“hey wanna role play your a balloon and i blow you up? its what i call the boston balloon”

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A boston balloon is when you blow and burp into a willing partners butthole, pretending your blowing up a balloon.

“hey wanna role play your a balloon and i blow you up? its what i call the boston balloon!”

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