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2.
1. Term used to describe a man declining the opportunity of scoring with a woman.

2. Term used to describe a man acting timid towards an attractive female.
One friend says to another on a night on the town: Get in there man, don't be such a beaver leaver"
by skat shake February 14, 2005
 
1.
A male who appears to have an allergy to pussy & swings toward boaby's instead
My mate paul is a beaver leaver 'fucking poof'
by Dean McCluskey April 01, 2003
 
3.
The female fart that, while sitting, begins at the poop shoot and travels along the yellow brick road in bubble-like form to the front butt and makes the perpetrator go "weew" as the bubble squeaks out with a clap.
Girl: Hey Sam...guess what I just did

Boy: Hey Beth I hope its not a beaver leaver ...cause thatd be gross.

Girl: Yeah...that is it.
by the pooter tooter June 01, 2011