Someone who is fat, but you cannot tell until they remove their shirt. Most half-fatties are only half fat because they are lazy and eat hot pockets.
by d-frank April 17, 2007
Get the half-fattymug. 
a gril or woman with a big ass butty also knone as junck in the trunk or a package can also be refired to as a fatty boy
by nicole October 2, 2003
Get the fatty girlmug. Close cousin to the Cleveland Steamer. However, this variation involves the consumption of a 3 day old large log of feces.
by you want spicy January 12, 2006
Get the Cincinnati Fattymug. a big fatass that cannot get off his/her fucking couch....to use the shitter..Often wines about doing housework, going outside, and doing work out activites.. they think Halo or The Sims 2 is a fucking job because they move their fingers.
Likes to eat everything in site, doesnt give a shit if they break down your car, couch, etc etc etc. Theres probably some ancient shit ingrown in their titty flap, or fatass crack.
Likes to eat everything in site, doesnt give a shit if they break down your car, couch, etc etc etc. Theres probably some ancient shit ingrown in their titty flap, or fatass crack.
*Kate: Hey John, Can you please get up so i can find the remote?
*John: No i'd rather sit on my fatass.
2 hours later...big fatty leaves
*Kate: I really need the remote!!
Kate finds remote, in a pile of shit, in the fucking toliet.
*John: No i'd rather sit on my fatass.
2 hours later...big fatty leaves
*Kate: I really need the remote!!
Kate finds remote, in a pile of shit, in the fucking toliet.
by darrianhayleyr April 4, 2009
Get the big fattymug. by a DUMB rUMS September 8, 2003
Get the Fattie Mageemug.