A manbeast is a female (in most cases a lesbian or bisexual) that either intentionally or unintentionally resembles a very very ugly man.
by Weston Hargrove November 9, 2006
Get the Manbeastmug. by GooganNurcles April 14, 2009
Get the Manbeastmug. 
rio hadland:i am not a man beast!
me:yeh you are you look like a man you act like one and i swear your voice is breaking *shouts to year 8s* oi aint she a manbeast!
year8s:yeah wouldnt like to be seen with her!
rio hadland:fucking pricks im gonna fuck you up bad and then ill use my balls of steel to knock you out!!!!
me:see i told you
me:yeh you are you look like a man you act like one and i swear your voice is breaking *shouts to year 8s* oi aint she a manbeast!
year8s:yeah wouldnt like to be seen with her!
rio hadland:fucking pricks im gonna fuck you up bad and then ill use my balls of steel to knock you out!!!!
me:see i told you
by eddywierdbeard December 28, 2005
Get the Manbeastmug. a woman who was possibly fathered by a hillbilly backwoods man that's inbred and had sex with many farm animals. The woman is said to seek out affection from any sort of man or woman who is dumb enough to give it the time of day. They usually have sex with anyone and have kids with multiple partners to try and suck money out former men who were dumb enough to "tap that".
"I'm not sure what I slept with, it was like throwing a hot dog down a hall way, it also might have been tucking a penis, that thing is a real manbeast."
by liannalynn January 5, 2014
Get the manbeastmug. that manbeat has a cock
by manbeast hunter March 30, 2005
Get the manbeastmug. by jonjonjon11111 August 17, 2007
Get the ManBeastmug.