Cave Monster

A penis that lives inside a vagina and comes out every now and then.
"Woah, Pigeon. Is that a cave monster?"
by WhiskeyPigeon October 31, 2016
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Grotto Monster

A greatly feared beast that resides in small shaded bodies of water. Preferred habitat is a cave with a waterfall covering the entrance. The Grotto Monster will spring upon prey and destroy them with powerful jaws and arms eating nearly every body part. Due to ferocious attacks he remains perhaps one of most feared monsters in Northern California although he has been spotted several times in southern California.

No one has every captured footage of the Grotto Monster, because no eyewitnesses are ever found. The earliest recording of the Grotto Monster's Legend is somewhere in the early 1980's. Although the sources are plentiful they remain spurious.
"Oh my God! Run for your lives its the Grotto Monster!"
by DR Griffin July 28, 2009
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Thirst Monster

A person who needs constant attention. To "thirst" on a regular basis; day by day thirst. When the "thirst" goes above and beyond.
Me: Oh man I cant wait to go see Joe tonight, he is taking me out to dinner and a movie.
Cousin: Ooo I can I come? If I cant come can I get a doggie bag? Tell Joe I said "Hai.."
Me: Nah thirst monster.
by lammzdegreatness May 18, 2013
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Cake Monsters

The best, and I mean it, the BEST game out there. A game that can only be found on SumDog. Cake Monsters is a game of sheer knowledge, speed, and precision. Only the greats can be called a Cake Monsters Legend, and if they are called that, they are a master of Maths, Cake Monsters, and nothing else.
I wouldn't test that guy at Cake Monsters if I were you, I hear that guy practices every day. He's practically a Cake Monsters Legend, man!
by Goat_011 April 17, 2020
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monkey monster

a heaping load of crap that expells suddenly when one is extremely startled.
the midget made mike myers make monkey monsters when he looked down to see such a tiny person.
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Scrazzle Monster

Someone who is cheap, stingy, or scruffy looking
Person 1: Dude you been campin on that blunt, ya "scrazzle monster"
by RE1015 May 03, 2010
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cookie monster

The act of penetrating your female partner's rectum with your thumb and inserting your other four fingers into her vagina. Move your thumb and fingers as you would a sock puppet, thus creating a cookie eating monster. (Voices are encouraged for maximum arousal.)
My girlfriend likes to role play, so I suggested Sesame Street. I rolled her onto her stomach and gave her the cookie monster until she squealed like Ms. Piggy.
by Tris Shedaw December 06, 2010
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