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to act like you know what you're talking about when you really have no clue
Bob: Did you know that the quantum theorum can also be used in biology?
LeeRoy: Man, you talkin outta yo ass
by Pink1 November 04, 2004
An act performed by individuals with a rare disorder known as vocal assitis. People with this disease actually have a voice box right behind their prostate in their anus.
Jon Kodatt likes to talk out of his ass.
by william d willerson February 17, 2003