fat finger 

A specific kind of typo where one stroke presses two keys instead of the intended one.

exzample,
the z was pressed along with the x

fat finger by Squee! July 3, 2005

Fat Bottomed Girls 

Girls that make the rocking world go round.

See Amandycat's definition of Queen

Are you gonna take me home tonight
Ah, down beside that red firelight
Are you gonna let it all hang out
Fat bottomed girls, you make the rockin world go round!

Fat Bottomed Girls by IAMSODOT April 4, 2005

fat cash 

A large amount of money.

He was making fat cash at his new job.

fat cash by jill-E-bean October 8, 2008

Fat out

The act of eating excessively until everyday activities such as getting a TV remote or driving a vehicle become strenuous.

We need a designated driver because we are all going to fat out at the buffet tonight!

Fat out by Fatguy318 January 12, 2010

Fat Meat

A phallus of considerable magnitude

"See that kid over there? I heard he has a fat meat."

Fat Meat by Dr. Johnson Pinkberry March 2, 2010

Fat Grenade 

A female who is on the verge of "blowing up". A lil chubby but not fat...yet. Has great potential to look like her mother.

That beech is kinda hot but she's a total fat grenade. She looks like she's one burger away from exploding!

Fat Grenade by Fk yeah May 21, 2011

Fat Bastard 

Your dad after he eats the goddamn cake you we're saving for later.

"Did you eat my cake?"
*crumbs on face* "No."
"Thanks a lot you fat bastard."

Fat Bastard by The Space Potato August 14, 2017