A touchdown celebration created by Jamal Anderson for the 1998 Atlanta Falcons. The dance, which consisted of flapping arms to act like wings, was introduced when tight end O.J. Santiago celebrated his two-touchdown effort following a 41-10 victory at New England in early November. The fever it generated captivated a national audience as well as brought the Falcons to the front of the Atlanta sports scene.
The Dirty Bird is one of the best end zone celebrations ever.
by Spanky June 26, 2005
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'A girl who usually appears innocent, often having a private school background, but who is ultimately ten times dirtier than any other girl out there. She revels in being a sort of 'secret slut' and only very few know about her slutty behaviour. She enjoys most sexually activities, especially those that others find out of bounds and has most likely engaged in sex with multiple men. In short, she is filthy.'
'That girl Zoe is a right dirty bird, last night she came round to my house and sucked off me and my best mate before letting us both take her from behind'
by Filthy Boy December 6, 2007
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Someone whose mind is usually in the gutter (i.e. dirty thoughts)
"Have you seen my spectacles?"
"What??? Testicles?"
"Dirty bird."

OR

Howard Stern is a dirty bird.
by Shorty January 29, 2004
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Hammering a girl in the ass who is not your girlfriend, then returning home and coercing your girlfriend into sucking your unwashed penis.
My woman done pissed me off so I issued her a dirty bird using her grandmother's ass.
by Butter B. Bean May 3, 2003
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A Rochester, NY term for a woman simulataneously taking 3 men, one in her mouth and one in each hand. She bobs her head vigorously and flaps her arms up and down with the two dudes in her hands creating a "birdlike effect" hence the term DIRTY BIRD.
"Yo, you, me and Herbie should get that chick to give us the dirty bird. I got mouth"
by Harold R. Johnson September 6, 2006
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