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1.
The area between the nutsack and asshole. Normally festered with hair and contains a stench that is unbearable to humans. Questionable as to if females have a beamus or not.
Wow my beamus itches like something awful. And what is that foul stench?
by MJKclaypool December 08, 2005
 
2.
Taint Sweat. See Taint. The actual sweat from your taint. Both Male and Female.
My Taint was sweaty after practice, so I wiped some Beamus on Erics' upper lip.
by Dick Neptune October 28, 2008
 
3.
Another word for fat. But there are many differnt variations of beamus with different meanings.
The fat bastard has an abundance of beamus.
by Raziel April 14, 2003