Fabloon
When a guy with a foreskin glues it shut like a f***ing idiot, then pees or jizzes and his skin balloons up like a f***ing f***ing f***ing balloon.
My brother did the fabloon and it looked like he had a f***ing water balloon on his junk.
He did the fabloon and it was so big he had to wear a f***ing diaper.
I saw this guy do the fabloon and it looked like he had a f***ing f***ing f***ing balloon on his junk.