Top Definition
A fat daddy fucked up/ when a fat bitch gives you shit/ what it sounds like when an indian (not native) say's "your'e welcome"
"uh oh fattywukup"/ "she's a fattywukup"/ "thank's for the slurpy dude", "your'e fattywukup
by John senior April 02, 2007
5 Words related to fattywukup

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