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.
guy 1: Dude she's so hot!
guy 2: just wait til she smiles, total french fry smile.
During oral sex you lie your partner down on their back and cum in the back of their throat, and they proceed to sit up very fast causing the cum to run out their nose and mouth causing them to have the appearance of a French bulldog.
Dude my girlfriends mom camehome when I came in my girls throat so she got up looking like a French bullydohg