Fat Girl Confidence
The undeserved, but ever-present, condition of self-esteem felt by fat girls who believe that men actually care about "personality." Brought about by Chubby Chasers trying to score by laughing at unfunny jokes or listening to terrible poetry. See also, Freakhog (3)
It's that fat girl confidence, man, it can't be deterred.
Fat Girl Confidence
When a fat girl you know is overly sassy and acts better than everyone to hide the fact that they're fat.
That one girl in my history class has too much fat girl confidence