oral sex involving pushing the giver's head into the receiver's pelvis so hard as to injure the face of the giver.
I monster-faced your mother so bad last night, she lost most of her teeth.
by Norristonian April 19, 2004
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The corpse like look of a crack addicts face due to many years of drug use. This includes sunken in eyes, cheeks and greyish leathery skin. These people often look like wandering demons hence the name crack-face "monster."
Jenny went for a trip downtown where she saw a crack-face monster flailing along the sidewalk.
by psychobunny January 8, 2009
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A monster who has a face made of poo. Also used as an expression of frustration (ie. instead of "bummer," which tools say).
Eric: I just found out I have to work this weekend.
Karen: That's a fucking poo face monster.
Eric. I know... I know...
by Big Daddy Finch March 23, 2011
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