1. To get close, preferably under blankets. A manly alternative to cuddling.

"Damn Florence I have been working all day. All I want to do is turn the lights down, get the fuzzy unicorn blanket and snug up on the couch in front of the TV to watch my shows. Is that so hard to understand?"
by Bobsterpher October 10, 2007
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To wear one's Snuggie proudly and with attitude. (The Snuggie is a blanket with arm holes that allows unprecedented freedom of movement and gives the wearer instant style and class.)
Girl 1: Hey, what are you doing tonight?

Girl 2: Guurrrl you know I'm gonna snug it up tonight at the library.
by CateBaggins September 27, 2009
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Like a hookup but it’s a snuggle up.
When you just cuddle and do nothing else.

No sexual interaction.

When you’re touch starved and need some lovin
C: hey what are you doing tonight?
T: oh, having a snug-up with my guy friend
by cass03 April 11, 2021
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