A theoretical state of being lubricated/greased so much that you look like a slug had a monkey's babies. It's also a term for a gay person. Because they always use too much lube.
"I'm gonna grease you up like a slug monkey and throw you down a barrel" *read in thick southern accent*
by slugmonkey2 February 13, 2014
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When everyone at a party is purposefully getting a single targeted person as drunk as possible and EVERYONE is in on it. The more drunk you can get the “Monkey Slug” the more entertaining it will be!
Person 1: Yo, how was that party last night??

Person 2: Bro it was crazy, we were Monkey Slugging Robert to the point he was screaming and rolling on the floor. It was hilarious.
by Mav_ July 23, 2019
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