When a young girl has pounds and pounds of pig fat in her purse to impress her friends and her boyfriend/husband.
"Did you see Jessica's fat bag?!" -Brittany
"Yeah it was totally awesome!!" -Madyson
"Yeahhh!!" -Anthony
by MysteryMustaches May 8, 2010
Get the Fat Bag mug.
Extremely large breasts that can not simply be glanced at. Either being so fabulous one can't take their eyes away. Or so grossly saggy one can't stand to look again and attempt to appreciate the attrocity.
Look at those fucking fatty fat bags mother fucker!
by Township August 18, 2006
Get the fatty fat bags mug.
Used for an old woman who has bags on her bags, rolls on her rolls and wrinkles on her wrinkles.
*old woman* You want some of this?
*guy 1* No, you old hag!
LATER
*guy 1* Dude, did you see that?
*guy 2* yeah you got hit on by that fat old bag of sag.
by DonTouchMeFoo November 27, 2010
Get the fat old bag of sag mug.
Fat Bag is used to identify a furry mammal that is coated in mouldable stretchy skin.
Person: "come here Fat Bag"

Fat Bag: "woof"
by archie fitzpatrick January 26, 2022
Get the fat bag mug.