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3.
Tiredness felt after a meal commonly due to the consumption of hard to digest substances
I don't want to eat too much or I'll get food fatigue
by Anthony John Cassidy January 12, 2009
 
1.
The uncontrollable need, or want to have a nap after eating a large amount of food. Most common during Thanksgiving and Christmas time.
Billy: Dinner was great! Thanks mom!
Bobby: I have some serious food fatigue now though.
by Captain Know-How November 10, 2010
 
2.
Tiredness felt after a meal commonly due to the consumption of hard to digest substances (meats, oils)
I don't want a steak, it will give me food-fatigue.
by Anthony Cassidy March 24, 2004