glo down 

opposite of glo up. when you thought someone was gonna get hot and "glo up" but instead they get so ugly and "glo down."

Oh my gosh I thought she'd have a glo up. Yikes, definitely a glo down!

glo down by cheezpastasa December 9, 2015

Glo up 

A glo up is when someone becomes confident, and believes in themselves, and they don't give a fuck about what anyone says about them. That's what makes them seem more beautiful.

S/he had a glo up because they believe in themselves and has become more attractive.

Glo up by fuckingbox March 22, 2017

glo-up 

The act of going from UGLY to ATTRACTIVE over a period of time

"Damn he had a glo-up"
"I know right!"

glo-up by handler007 February 22, 2017

Glo day 

You or someone’s birthday

Happy glo day Tyrique

Glo day by Massaquoi 💯 June 23, 2018

Glo Gang

Glo Gang is chief keef's gang. The only reason why they called it Glo Gang is because...

1: They had lots of guap/money

2: They be getting thots

3: They have glo charms/glo jewelry

4: They had glo on them and it was gang so they called it Glo Gang

GLO GANG GLO GANG GLO GANG GLO GANG GLO GANG GLO GANG GLO GANG GLO GANG GLO GANG GLO GANG GLO GANG

Larissa: aye I looked up glo gang on urban dictionary and found out what it means.

Tarissa: good for you cause I did too

Glo Gang by I be chiefin keef January 1, 2019

Glo up 

Means after puberty you become very pretty or fine af.

Todd: Do you know Kayla Peeps from middle school??
J: Yeah she ugly af.

Todd: BOI SHE HAD A GLO UP AND HER BODY OH GOSH!
J: Damn... Now I wish I didn't bully her...

Glo up by Jiglaxy August 29, 2017

Glo-Sticks 

Glo-Stick is simply a spelling mistake for GLOW STICKS.
A glow stick is a plastic tube that once bent and 'snapped' glows in a florecent colour. Often associated with nu-rave and clubbing.

YOU: comin to the Rave saturday?
ME: yup got my glo-sticks ready and all
YOU: dude! u got glow-sticks!?? Man , I wish !
ME: g2g ! cyu then!
YOU: yn

Glo-Sticks by tamara10 February 15, 2009