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(noun) a large flightless bird, typically characterized by stumplike cankles
Damn birdus is so angry that he can't get up on that tree.
by Monsignor Diablo January 30, 2012
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2
When one flips the middle finger to another in an act of anger
joe- dan you just lost at ping-pong you suck

dan flips off joe

Joe- Dont you go and flip me the birdus
by cacka craig June 18, 2005
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