Top Definition
To expel air and bitumen from the lungs suddenly and noisily, often to keep the respiratory passages free of irritating material.
Tammy: Oorf! Horf! Aorfff!
Roddy: Is she dieing?
Abe: No, that's just the Fort Mac Hack.
Tammy: My breath registers at 87 octane.
by M DOGG July 11, 2005

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