Top Definition
(n) a day where you feel fat. its not your period...its not that mcflurry and vodka you mixed together last night, its just a

-you feel like an oompah loompah trapped inside of the Pepperidge Farm. but its okay, cuz everyone has them.

-just grab a pair of sweats and one of those t-shirts you

you got for free at your soccer camp...and lets rock

these rolls, baby!
Amelita "eww..whats she wearing?"

Carlos "her sweats and a soccer shirt!"
Amelita "ohhh...."
(together) "FAT DAY!!! WOOOHOOO!!!"
by loompadydoompah March 08, 2010
A day of the week/month in which you deside you will eat whatever you want, usually including your friends in it.
When we get to the cinema, we're having a fat day! We'll buy huge popcorn packs and tons of jellies!
by NightOwl5 January 19, 2014
1. The act of taking a random day off from school and using your weight and/or size as your excuse.
2. The act of taking a day off of gym class due to the activity or just pure laziness due to your morbid obesity.
Hey man, we're running in gym today. I think I'll take a fat day.
by x Ant e Dote November 14, 2003
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.