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1.
One who engages in intense snugglin.
Lindsey is a snugglemonster when she visits Brandon.
by brandonodno October 11, 2006
 
2.
When you are dubbling up in a bed with another guy due to a lack of available beds (ie: Hockey Trouneys) and one guy decides to cuddle the other guy while sleeping. Usually this is non consensual and could be considered a light form of man rape.
Man, T-Bone was a real Snuggle Monster last night. I woke up and he had his arm around me and his tongue in my ear.
by Big Big - L February 03, 2009