1. when someone is farting they are blowing ass.
2. when something sucks it blows ass.

1. oh shit, cover your noses, i have to blow ass.
2. that fucking blows ass!
by CurvedMirror July 11, 2008
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A person who lies about everything they say and doesnt tell the truth in order to act cool.
"I had sex with 20 chicks in one night Bro!!!"
"Shut the fuck up you blow ass!!!"
by PotatoChip May 30, 2003
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The act of being of poor or unsatisfactory quality. Its adjective synonym is "weak".
by Balano September 28, 2003
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Sucks, not good, usually said on video games.
"Oh this sniper blows ass on this game !!!"
"Oh wow this game blows ass, who plays this?"
by Jared Kelsay July 28, 2008
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the act excreting gas from the anus
Trevor blows ass on Tmanda's face when she is sleeping. Poor Amanda
by amanda and trevor February 19, 2005
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When a person pulls down their pants, spreads their ass cheeks, exposing the inside of their ass, and farts. This will create a very funny sight/sound for the spectators. A good blow ass will involve shit coming out of the ass and hitting the floor.
Jerry knew that the only way to make his friends laugh would be to spread his ass cheeks, let his asshole expand, and blow ass.
by Oshishi June 16, 2009
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The process in which as person, pulls down their pants, faces the people in the room, bend over, spread their butt cheeks, and fart as hard as they can...smells 3X worse than just farting.Blowing ass.
-Derek got on his desk in study hall and started blowing ass.
-Go blow ass Gracie!
-Your presentation was good but it could have been better if you had blown ass.
-He blew ass and it smelled horrible.
by Dustin m Turner 123 September 23, 2007
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