A huge dog that people let get overweight. If it can stand up then nobody will ever break into your house.
Qwerty: "My dad has a friend with a fatty mc fat fat fatty fat dog fat."

Asdf: "Holy shit, can it walk?"

Qwerty: "No, so he has to get carried up the stairs to the house. He's really nice though."
by etaN retsaM March 28, 2008
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Fat dog

You know that dog ringo

Yeah he’s a fat dog
by Jjvcgjcdff May 01, 2020
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Fat Dog

A fat cunt that cant run but is the best playmaker.
by doin bred October 23, 2019
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Fat Dog

Some one who kills you in fortnite/ A freind
*Some one kills you in fortnite* U FAT DOG!!!!!!!!!!!!!!

or
*Yells over to there freind* Hey you fat dog
by Johno1910 October 23, 2018
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big fat dog

this is for becky you big fat dog
by grace_williams_official July 06, 2020
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Fat Dog

Wow! Ruby sure is a fat dog!!
by CameltheChameleon December 12, 2022
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fat dog

A little chonky hommie who is a good boy/girl
Look at that fat dog! he's so cute!
by cat and dog lover August 29, 2021
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