To become ridiculously more attractive than one's former self, primarily, but not exclusively, as a result of puberty. A pun on 'level up', referencing the unexpected transformation of Neville Longbottom (Matthew Lewis).
"Did you see what that kid from ET looks like now?"
"Yeah bro, I didn't expect him to Neville up like that."
"Yeah bro, I didn't expect him to Neville up like that."
by Lawren J. Reicher December 02, 2013
by Dortmcgort December 26, 2020
In the movie Harry Potter, Matthew Lewis plays the role of Neville Longbottom. Neville is the portrayal of growing up awkward, "unattractive', made fun of, etc. As an adult, Matthew Lewis is now considered to be rather attractive by many standards. As Nevill's experience is such an accurate representation of the "glow up" process it should said that Matthew Lewis...Nevilled Up.
You can...
1. Neville Up
2. Be Nevilling Up
3. Have Nevilled Up
You can...
1. Neville Up
2. Be Nevilling Up
3. Have Nevilled Up
by His Unholiness, Sinpai December 10, 2022