A sibling or parent that just simply eats to much, even though they don't gain any weight. If you ever have a older brother that looks like a twig, let them know they are a fat chicken!!
You: Kyle, stop eating all the food!! You are such a fat chicken!!
Kyle: I am a twig, what are you talking about?!
Kyle: I am a twig, what are you talking about?!
by Fat Chicken October 10, 2020
Get the Fat Chickenmug. The 10-15 pounds of excess blubber an individual tacks on once they acquire a significant other and no longer feel the pressures of single life. In essence it is the fat obtained when an individual "gets comfortable" in their relationship.
Hey Bertha, I couldn't help but notice that ever since you started going with Deshawn your hips have gotten out of control! "Oh it's nothin honey, just a little comfort fat. Those skinny single bitches be trippin."
by Maddiebee January 30, 2016
Get the comfort fatmug. 
by tehboss_2 October 9, 2018
Get the fatmug. When you are packing more girth then length, as observed through the glory hole at your favorite dive.
by The Cut Offs May 3, 2024
Get the fat mezzmug.