1 definition by Tdawg_dawg

Top Definition
An unhealthy obsession with being thin and working out, but also being fit at the same time. Often found in young women and teenage girls. Usually found in selfies on Instagram, Pinterest, Tumblr, etc.
"That girl is so fit!"
"No, she totes has Fitsorexia."
by Tdawg_dawg November 26, 2013
Mug icon
Buy a Fitsorexia mug!