Definitions by REEEhoneybuns

Fangirlioma 

Fangirlioma is a rare disease that usually targets fan girls. Don't worry, it's only Sans Undertail fan girls that make cringe content on YouTube. Animations using Flip-A-Clip have a higher risk of Fangirlioma.

Infected Person: SANS IS MINE!
Duck: Wow... she might have fangirlioma...

Fangirlioma by REEEhoneybuns April 7, 2019