Concept in which only either father or mother take turns to stay and live at home (never both) for a period of time with the children usually during a period of seperation.

Thus the children still get to see both parents as though they still live in the house as against divorce when the man most time completely moves out of the house.
Jane: So have you divorced Stephen?
Sally: No, We are currently Bird Nesting.
by Chijioke August 13, 2010
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When several of your friends and or coworkers go to a party of a person you don't really like. Take a pee break, on the rim of the toilet seat, then yank some of your pubic hair and sprinkle it all over the seat, after 10-15 guys do this you have your Birds Nest.
Hey Jimmy, lets go to the school band party and put a birds nest up.
by Camel Jockey John December 15, 2004
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The hairy and untamed pubic area of a male that specifically alludes to the testicles and the penis (two eggs and a bird).
Dude, no chick is ever gonna give you a blow job until you trim that nasty bird's nest!
by demonsentcrooks July 26, 2008
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When a supposed friend (usually male) occupies the time and space of a "platonic" companion (usually female) with the intent of preventing them from engaging in relations with someone more deserving. The bird nester has been friend zoned--quietly rejecting the rejection; resulting in stealthy cock blocking techniques to buy them some time to win their friend over like a Hollywood rom-com.
"I can tell Alexis wants it soo bad,.. but she is dating Fatehbir."

"No bro, he tries very hard to make it look that way, that dude is a bird nesting kumbaya piece of shit!"
by ElGato212 June 1, 2019
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A bird's nest refers to when you pack a perfect bowl in a pyrex pipe. The dope is the eggs in the nest and the nest itself is the bowl.
Me: Man let's go out after work and pack a bird's nest.
Mitch: Yeah man I am always in for a good bird's nest.
by Jared Scott March 22, 2006
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A lapful of vomit deposited by a drunken fellatrix.
"That bitch was so hammered, she me gave a bird's nest soup after I tickled her tonsils."
by Lou Al Fiender November 17, 2006
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The act of performing a flappy bird on a woman's vagina.
Oliver Klosehoff: I was bored with my girlfriend last night, so I did the flappy bird nest.
Mike Latoris: You lucky bastard. I showed my girlfriend the flappy bird and she just walked away.
by sofunnyialmostlaughed January 31, 2014
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