Man 1: Damn. She's got more testosterone than the entire football team.
Man 2: Yeah, she's a fucking mush bird alright.
by Itchy nutsack May 29, 2006
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A girl that looks like a man.

A girl that talks like a man.

A girl with a square chin and facial hair.

A stupid fuck of a girl that wears mens sports clothing and a baseball cap.

An ugly girl.

All/Any of the above.
Man A: Geez, you want to stop fucking that Kappa track suit wearing geezer of a mush bird.

Man B: She loves it hard up the shitter though...

Man A: You knoes iiit...
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The biggest mush bird in the extended vicinity of Portsmouth
Yeah that Imogen girl is Portsmouths biggest mush bird in Portsmouth
by Mushbirdlover June 29, 2021
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The biggest mush bird in Portsmouth like a man but a girl but looks like a man but isn’t you get me g
Yeah that Imogen girl is Portsmouths biggest mush bird in the general Portsmouth vicinity
by Mushbirdlover June 29, 2021
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