fat backin 

when a man grinds his pelvic area into a females butt

John was fat backin tina on the dance floor.

fat backin by mandengho November 10, 2007

fat dab 

A dab that is too big to handle so you pass out

Yo let me get a fat dab!

fat dab by Futureofthefuture December 30, 2015

fat handed twat 

A person with large, stubby fingers, looking like they have 10 thumbs

When in conjunction with a large head, more commonly known as "Jack"

"Jack, your hands are so fat. You are a fat handed twat"

fat handed twat by Archie December 5, 2004

fat girl glitter graphics

The glitter graphics used by fat chicks on myspace, blackplanet or any other blog in place of their photo in their profile, usually of some shapely generic girl shaking her ass.

Fat girl glitter graphics are the rage on myspace.

fat girl glitter graphics by xzybit November 8, 2006

fat-tard 

One who illustrates characteristics of both fatness and mental disability

"Man that bitch is such a fat-tard"

fat-tard by phippy August 4, 2004

fat mouth

1. the kind of person that talks crap and may have pathetic comebacks

2. someone who spreads rumors, even if they aren't true

3. that one person you can't tell your secrets to

Boy: You're a freak and you're ugly.

Girl: Kid, you need to back off and leave me the hell alone before I freaking punch you in your big, fat mouth.

fat mouth by BatmansGotSwag October 18, 2011

Fat Fucking 

An analogous act to a titfuck, performed by a guy on an obese partner, using rolls of fat instead of breasts for stimulation.

Also as a verb, fatfuck, not to be confused with fat fuck (derog.).

My girlfriend is so fat, dude. When I fatfuck her, my dick disappears!

Fat Fucking by luvthabiggest May 28, 2005