Quickly going from ugly to attractive. A transformation.
“Dang, is that Elle Evans?”
“Yeah, she had a major glow-up over the summer.”

(Ex. The Kissing Booth)
by YoddleLayHeeWho July 03, 2018
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Me:yall! Did you see all those celeb glow ups?! I think that type of change is called money, not puberty! Looks like I gotta hit the gym
by Crazyrearea April 11, 2015
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when puberty didn't do its job
Following the conclusion of the hit series Drake & Josh, Josh Peck had his glow up as he lost weight and figured out how to dress himself.
by MrLevodevo April 23, 2016
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Glow up means when someone who was ugly are ugly will get cute
Person1: Wow he Glowed Up
Person2: He gonna Glow Up
via giphy
by KaizB November 09, 2018
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