Top Definition
1.n. Someone who illustrates extreme stupidity.

2.n. A sphere which has been increased in surface area and volume by being filled with a material substance, such as a balloon filled with air.

3.n. The state of being a homosexual or prostitute who sexually stimulates the testicles of another orally.
"Joe is such a blowball!"

"That blowball is filled with helium."

"Hey blowball, lick my testicles!"
by Carlos April 17, 2004
a general term, comparable to Kick Rocks or You Suck
Oh you can't attend my party, Blow Balls
by BiggsMack September 01, 2008
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