While fucking a girl in a lumber mill, your pounding her so hard that she has to bite down on a piece of wood.
by WackaWackaWacka! November 1, 2010

by Deadformatgames January 25, 2019

by Durhamsandwich October 17, 2008

Alias for a girl that comes into a guys room and sucks his big, hard cock off while he's sleeping. If the guy wakes up, he usually still pretends as though he is sleeping.
Dude, I totally had a sneaky beaver come in on me last night at the hotel. When I woke up, I just put my hands on the back of her neck and slammed my dick into the back of her throat.
by Chizzzzy August 22, 2008

A fictitious Canadian retailer.
by 49erKiller June 23, 2007

A guy usually who goes home with an ugly girl or takes and ugly girl home and has sex. He did this because he was so drunk.
Kyle: Yo, I munched on that beaver last night!
Wyatt: You must have been hella drunk!
Kyle: For real!
Wyatt: You must have been hella drunk!
Kyle: For real!
by Savannah March 21, 2005

When you have sex with a girl, then finish on her vagina. Spread the semen over her vagina and leave it to dry. Once it dries, nothing will get in or out of her vagina, leaving it "beaver dammed"
last weekend i beaver dammed my girlfriend, needless to say she was not happy when she realized what i had done.
by dickfore. March 30, 2010
