Fatty Batty 

Refers to the rear end of a person (usually a women) with a very fat wobbly arse.

"You have a very fatty batty ses I!"

"LOOK AT THAT FATTY BATTY"

Fatty Batty by Jason Winder May 14, 2006

Fatty Batty 

The apple shaped, bell bottom, part of your ass that hangs out the side of a thong.

Ey Fatty, you got a nice fatty batty.

Fatty Batty by No middle name fatty. October 21, 2009

fatty-boom-batty blunt

a large, high quality marijuana cigarette that may cause hallucinations

What you need is a fatty-boom-batty blunt, and I guarantee you'll be seeing a sailboat, an ocean, and maybe even some of those big-titted mermaids doing some of that lesbian shit.

fatty-boom-batty blunt by deadheadrik August 17, 2009

fatty boom-batty 

A cannabis joint of unruley size. Usually pertaining to a double papered joint that while of regular length has a disproportionately wide girth.

Yo, I just rolled up a fatty boom-batty jay of this skunky ass weed yo! Were gonna get so high...yeah!

fatty boom-batty by ChunkyD August 15, 2006

fatty boom batty

n. a spliff

"We went to a bar and smoked a fatty boom batty"

fatty boom batty by Ads February 13, 2003

Fatty Boom Batty Blunt 

The biggest blunt you've ever seen.

DAMN! That's a Fatty Boom Batty Blunt, Smoke That Shit!!!!

Fatty Boom Batty Blunt by Beaver Mandell December 24, 2002

Fatty Fatty Boom Batty 

Also used in drug references

"I'll tell you what you need is a fatty boom batty blunt, then you'll be seein' a sailboat, an ocean, and some of those mermaids doin that lesbian shit!"

-Jay, as played my Jason Mewes

Fatty Fatty Boom Batty by Double Threat January 16, 2004