Common term used to describe a males unsatisfying flacid limp weiner-schlong.
Mid sex kelly yelled to her lover "You're such a sass-monster!"
by Gdawg145654 July 11, 2009
2 more definitions
The right hand man of Fat Female Elvis; also, a pseudo-intellectual female with bisexual tendencies
"Look at that sassmonster! I bet she's menstruating."
by J. Stor December 07, 2006
Some guy/gal who works in Shipping and Receiving for a company that cannot read shipping receipts. This person also likes to think he/she is all knowing and superior to everyone. Very much a douchbag.
He was a real sass monster with how he was acting..
by Rimjob4u June 24, 2011