22
The G stands for gangster or gang the meaning is gangster up
"come on dude G-up already, stop crying over your ex."
by mrpooderman March 06, 2019
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23
What a toddler says when he/she is sleepy and wants his/her parent(s) to get up and carry him/her so he/she do not have to be burdened by uncomfortable feeling of having his/her feet on the ground.
"Gup mommy/daddy" (in the toddler's head he/she is thinking, I am sleeping and want to fall asleep while being held upright at this moment.)
by Dahda September 16, 2015
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24
Glow up potential. The amount of potential a person has to glo up.
Person 1: Hey, Matt has some serious GUP!!
Person 2: Yeah, he's not hot rn, but he will be!!
by Matt McWhite November 09, 2018
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25
Someone who suggests or organises an event then doesn’t show up for it.
Johns not coming to the rugby, he is being a Gup
by Teddyeddy1324 October 29, 2019
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26
G AP
A term used when someone lies, makes a mistake, or is wrong about something
eg.

Person 1: that pole is green

Person 2: gup! It’s actually red

or

Person 1: dude I heard you slept with Jessica
Person 2: gup, I didn’t
by Crackheadfr June 17, 2019
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27
It means to fight someone or get ready to fight. It also means like 'square up'
'I you a bitch g up'

'lets go now, g up
by To'manuafa March 21, 2019
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