This is when you have to shit so bad some of the shit is sticking out your ass, thus looking like a beaver head coming out.
by Justin S February 9, 2005
Get the beaver headmug. Is someone who has facial features that resemble a beaver, i.e. preferably buck teeth and beady eyes.
Oh yeah and has an abnormally large head.
Oh yeah and has an abnormally large head.
by Ringsting February 28, 2008
Get the fat headed beavermug.