by anonymous May 13, 2005

by Ann1213121 June 24, 2008

by AcidTsunami December 1, 2009

a male or female who happens to be incredibly large and most of the time have a foul stench hence mcnasty. you can usually find these people at bars, ctreet corners, parties, and dances. there is a small chance that you could see a fatty mcnasty at a show. those are referred to as scene fatty mcnasty. those are clearly the worst type of fatty mcnasty's.
me: damn did you see Aly?
guy1: yeah. shes gross. i hear shes scene fucked everyone in every band in this showcase.
guy2:jeez! thats one fatty mcnasty right therrr!
guy1: yeah. shes gross. i hear shes scene fucked everyone in every band in this showcase.
guy2:jeez! thats one fatty mcnasty right therrr!
by gina[thelumberjackie] October 7, 2007

A term used to describe a person who is fat and balding. Optionally this person may also be a horrible card player who catches runners on a regular basis and complains about bad beats that are, in fact, not bad at all.
by Dildo Daggins April 11, 2005

"You wait untill I loose 5 pounds and youz a dead mother fucker!"
"Look at this punk, to trigger fatty to pull the trigger.. fat bitch!"
"Look at this punk, to trigger fatty to pull the trigger.. fat bitch!"
by Jack (I'm not a ripper) June 28, 2009

"Hello."
"Hi, want some pot?"
"Sure."
"Okay, five bucks for a fattie bag."
"Gee, mister thanks."
"Anytime, dimples."
"Hi, want some pot?"
"Sure."
"Okay, five bucks for a fattie bag."
"Gee, mister thanks."
"Anytime, dimples."
by moooooonutts August 3, 2006
