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The fat threshold you reach and never surpass.
"Hey Mark, I can eat whatever I want now, I've reached my fateau."
by icwish May 31, 2009
While you're in the process of losing weight but have hit a stopping point or a plateau but are still fatter then you'd like to be.
I'm going to have to change up my workouts, I've hit a fateau and don't seem to be losing anymore.
by TheNeely August 02, 2012
Reaching the highest weight you've ever weighed. A play on the word plateau. This may be a positive or negative connotation.
This year during the holidays I've reached a new fateau of 243 pounds by eating chocolate dipped butter squares.
by EXITNOONE December 22, 2010