gup out 

Someone that says they will do something then last minute backs out of it.

Matt promised he would come out tonight but he going to be sitting at home doing nothing, such a gup out!

gup out by Man With Few Words March 4, 2011

gup sauce 

The sticky sauce that oozes out of the vagina.

Michelle's gup sauce stank!!

gup sauce by OGSM February 25, 2021

Gup gup 

The sound she makes when you grab the back of her head.

(Him) oh yeah just like that.

(Her) gup gup gup gup gup gup /deep breath in/ gup gup gup gup gup

Gup gup by BIGFOOT H8 January 17, 2019

Gup'd 

The single act of fucking up a situation or action by ones own fault.

Deloris: You really made a huge ass of yourself yesterday didn't you Lashanda?

Lashanda; I don't think I've gup'd anything so much in my life.

Gup'd by GJDV October 27, 2012

gup a sammy 

to eat a sandwich

Should we go to Subway and gup a sammy or two with the fellas?
Hell yeah bro.

gup a sammy by gup guy July 24, 2023

[Gup Mode] 

To be dissed by ones hommies for committing a foolish act.

A Gup Mode occurs when someone does something stupid and the event is witnessed by another, or a group.
To signal a Gup Mode, simply give a double chop to the right hand side of your neck using your right hand.

[Gup Mode] by Durvid Lurfurty December 17, 2006

Gup Out 

A person who knows and uses all the chat rooms to troll and find friends, a gup out is also known as the most retarted person in your college class.

The fluff that stays and staines inside your jeans is often called a major gup out.

Seriously mate, your the biggest gup out I've ever met.

Gup Out by Gubbzorz May 24, 2010