Top Definition
A lesbian who typically wears pastel-colored clothes made from organic cotton. Birdseed lesbians love granola bars, and spend a great deal of their time connecting with the earth.
I need to let my birdseed friend Carol know about the sale they're having at Whole Foods right now, their sunflower flax granola bars are 50% off!
by muonic March 29, 2010
Weed, marijuana, green, etc.
(Cockney) rhyming slang: bird seed = weed; but spoken or written, not "weed" but "bird".
1. "Two bags of bird seed ("seed" which rhymes with "weed" is unspoken) if you please ... Two bags of bird, man ..."

2. "If there ever was a bird brain, it's this mutha ..."
by oblonged January 20, 2015
A bird seed is a skanky girl who claims she's a St. Louis Cardinals fan.
e.x. look at all this bird seed on opening day.

e.x. Joe just went to the game for the bird seed.
by sheila tits. April 01, 2011
a hand shake originating from Baltimore used amongst males,to give kudos on a joke,comment, or is done by turning the hand into the shape of a bird's beak and tapping them vertically.
Guy 1: that was 1 triple dipped,double deep fried,greased up,butta head.

Guy 2: hell yea that broad was. gimme some birdseed on that.

(then proceed with the tapping of enclosd fingers vertically,may also resemble fingers performing the 69)
by Mr.Frost January 05, 2009
(female version of Blade)A girl who swears she is the shit, mostly used in the Phrase: Hype Ass Bird Seed. originated in Philadelphia
MO: Ayo Chris that girl mos def shot you down.
Chris: Man, She was just a hype ass birdseed
by mo Reese June 09, 2008
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