by elmo! May 9, 2008
Get the beastmug. Extremely hard fucking. Usually consists of the girl digging her nails into, and scratching the fuck out of the dudes back cause it's that good.
by mike-uh March 31, 2008
Get the beastmug. a sex machine capable of producing 5000000000 pounds of sperm a day. He/sometimes she will fuck u up, literally
by thedonkeyherder May 25, 2010
Get the beastmug. by Dennis Minton February 12, 2008
Get the Beastmug. 

