Direbird 

1. One who systematically changes or alters the appearence of his or her automobile so it appears or performs more like a Pontiac Firebird.

Shit, dude, what did you do to your car? You don't have a Firebird, dude, you have a Ford Taurus! You're such a direbird.

Direbird by Nemesis Darklord February 25, 2005

dirtbird

A woman of ill repute. A promiscuous female. A dirty, venerial whore who men should not touch with the longest of bargepoles.

"That Mavis is a right whore. Barry caught glowing herpes off her, the fecking dirtbird."

dirtbird by Murf Murphy. April 26, 2006

dirtbird

Irish slang used by scumbags for someone they consider morally lower than a scumbag, typically a paedophile or murderer.

"that Christy from number 98 deserves jail after what he did to jacinta, f&*kin dirtbird"

dirtbird by womoma April 15, 2005

dirtbird

Someone who doesn't wash that often. (Northern Irish slang)

He's such a dirtbird, you can always smell him before you see him.

dirtbird by Boc2 December 3, 2007

dirtbird

small, possibly stupid birds that sleep in the dirt during the darkest of hours. When approached on bike, the elusive dirtbird will frantically fly in the face of the on-comer. A defense mechanism? Or perhaps another cruel joke by Mother Nature...

I was railing around the corner on the fire-road when this fucking dirtbird flew in my face.

dirtbird by The Dirtbird Hunter November 6, 2006