the art of flailing your arms as if you had bird wings and screaming a loud "caakkaaaaawwwww" in conjunction with putting on your best stank face.

Also see Stank face
Chris: did you go to the Veterans of Foreign Waves show last night?

Alex: yeah dude! they dropped one track and everyone was doing the dirty bird
Ben: Are you guys talking about the 8,000 person dirty bird at the VFW show?
by #dirtybirdnation April 01, 2014

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1) a perv....as referenced by miss jackson
2) an unwashed private part, male or female
1) you're such a dirty bird
2) think it's time for a shower, gotta clean my dirty bird
by radus June 16, 2009

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A flithy woman that has the potential to have a large number of STD's
That dirty bird looks like she was rode hard and put away wet.
by Brent Shirley November 15, 2007

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when railing a girl from behind you pull out shove it in her butt when she arches up in surprise you figure four choke her till she's out.
I got my girl friend with the dirty bird last night when she came back to she was pissed.
by Mr. Schmucatelli December 01, 2009

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Slang for a Southwest Airlines plane. No assigned seats. Just peanuts and a soda.
Dude...I had to fly the Dirty-Bird from L.A. to Dallas dude it sucked bad....I even got stuck in the facing backwards seat that doesn't recline. Hate that Dirty-Bird.
by tmsatx September 23, 2009

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When a girl gives two handjobs at once, while bending over, so it looks like her arms are flapping wings, while another guy pounds her from behind, making her squawk like a bird.
Dude, we should totally get that girl to dirty bird us.
by Jimmy-Jones August 16, 2007

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Another term for flipping someone off.
"... Did that guy just flash us the dirty bird?"
by Tartonkovski August 18, 2007

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