It means your smile is sour. It also has a much deeper meaning like I'm going to disappear. You have to choose which one it means though.
by Anon.. Lol March 29, 2021

When someone smiles and the ends of their lips do not curve upward, leaving the smile to look completely horizontal, similar to a french fry laying on its side.
by mayalex September 19, 2021

Smile superman is a cool guy. He faces all difficulties with smile. The nickname of smile superman is David who is a very good guy.
by Smile superman November 21, 2021

by Dmgmil September 23, 2018

Starburst smile-
That quiet boy in class who doesn’t smile often but when he does you can’t help but smile. His eyes light up and he smiles from his heart. It doesn’t happen often and is rare so be careful to keep him smiling.
The girl full of life. Always rushing around doing one thing or the other. She doesn’t have time for herself and deep down doesn’t really know what she’s doing but keeps that smile on her face regardless. Her infinite energy makes everyone around her light up as well.
These two are meant to be, in this life or the next. Their starburst smiles match each other and while he calms her down she makes him happy.
That quiet boy in class who doesn’t smile often but when he does you can’t help but smile. His eyes light up and he smiles from his heart. It doesn’t happen often and is rare so be careful to keep him smiling.
The girl full of life. Always rushing around doing one thing or the other. She doesn’t have time for herself and deep down doesn’t really know what she’s doing but keeps that smile on her face regardless. Her infinite energy makes everyone around her light up as well.
These two are meant to be, in this life or the next. Their starburst smiles match each other and while he calms her down she makes him happy.
by Orangehippie March 2, 2023

by IPromiseToDoWhatIPromised May 22, 2025

The indelible audible sound made when one is overcome with joy and exuberance brought on by Mamihlapinatapai
"After wrestling with the constant ebb and flow of emotion, her words were so sweet to read that I had no choice but to smile out loud"
by Johnny Wishbone 79 May 16, 2018
