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when some one is extremely fat. so fat that their pants will not fit.
my pants do not fit because i am so fat. everyone calls me a fatty pants.
by Fatty McJenkins September 21, 2007
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dogs that are very cute and are constantly tortured by Hadens's. They like to eat sleep and play and give unconditional love to everyone except haden.
aww poor fattypants, haden is pulling his tail again.
by mommy_lover October 27, 2018
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