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a very horny,ugly ass beast that is very human like in physical form. It has a vagina, penis and breasts so that it can fuck anyone that it wants to. Many that have been fucked by this type of monster have reported receiving sexually transmitted diseases. These monsters are believed to be invincible as no one has found its weakness. Because of this and the fact that they can chase down cars, they will catch you. Running away will only cost you your life and they will just fuck your dead body. It is believed that they live solely off of fucking.
I just got fucked by a sex monster and now I have HIV
by Shit Goose January 22, 2011
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1. a person who has sex a lot
2. a beast who has sex with other beasts
1. i am definitely a sex monster
2. wow, look at that sex monster, hollerrr
by ayla roman April 24, 2010
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The sexiest, cutest, sweetest, most loving guy in the whole entire UNIVERSE.
My Smitty is such a sexmonster!
That other kid doesn't even qualify for a sexmonster!
by Aubry September 17, 2005
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A horrible creature derived from a series of both male and female human reproductive organs. The main body consists of a large gaping vagina (which may or may not be soggy) surrounded in a large fleshy sack. Sexmonsters have uncannilly large arms. Two immense penises sprout from it's head and one drags between it's stubby yet muscular legs. The penises can become erect or flacid depending on it's mood. It feasts primarilly on babies doused in it's own semen (used for easier digestion).
Citizen A: "Oh my god it's the sexmonster!"
Citizen B: "Protect your children!"
Sexmonster: "GUBLAAARRGH!"
by Wesley Dale April 10, 2006
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