To add an ingredient, often unnecessarily and usually alcohol, to a food or drink.
Person 1: Looks like you need to gussie up that drink.

Person 2: Please...no more gin.
by Roderick Toombs July 30, 2008
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A woman with an almost unfeasibly large bottom.
"Look at the size of that butt! You could put a helicopter launching pad on it! What a Gussie that girl is!"
by Fester March 3, 2004
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A kind person who always takes one for the team. Gussie’s are usually female and tend to spend time alone to do creative things. They don’t need friends but come by them very easy.
Wow Gussie your so cool
by Bittersweetlollipopgal February 9, 2019
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Gussie, n, a person with a flat chest, and likes to cuddle with ugly people
wow dude, that girl is such a gussie, and look who she is with, euhhhhhh.
by sonofa January 22, 2005
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to only kiss the tip of a boys penis
"and then I got scared so I only gussied him"

"Did you hear that Hunter got gussied last night?"
by gussielover1234 May 15, 2016
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I girl's bussy

The boy version of a pussy is a bussy, which is their anus.

A gussy would then be the girl version of a bussy, so a female's anus.
Ian - "GIRLS DON'T HAVE GUSSIES!"
Morgan - "YES THEY FUCKING DO, IT'S A GIRL BUSSY!"
Ian - "A GUSSY IS NOT A THING, THAT'S JUST A BUTTHOLE!"
Morgan - "NO! BOYS HAVE BUSSIES BECAUSE IT'S A BOY PUSSY SO THEN GIRLS HAVE GUSSIES BECAUSE IT'S A GIRL BUSSY!"
IAN - "YOU'RE FUCKING RETARDED!"
by Morgan_Rose99 March 8, 2022
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It means straight facts. Even if someone says you’re wrong about something you said, if you say “on Gussy” you’re automatically right about it. There’s no way around it, on Gussy is FACTS.
Friend: I just got some nugs from McDonald’s and they were so good

Friend # 2: that’s on Gussy
Friend # 3: McDonald’s nugs suck
Friend # 2: actually you’re wrong because I said on gussy so therefore I’m right
by Ongussy24 November 30, 2020
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