Middle Age Butt. A phenomenon in which a woman's ass explodes in size dramatically, over a short period of time. This specific type of enlarged butt can be identified as being much longer vertically than it is wide. Commonly found strapped into dime store-caliber jeans such as Riders, with the waist pulled up high above the belly button. Seen from the profile angle, MAB will not curve out sexily like a badunkadunk, it will lay flat and tall along the back. Also known as mom-butt and mom jeans. It should be noted that the wearing of mom jeans can also be the sole cause of front butt (a butt in the front, below the belly button.)
Damn that lady has some serious frikkin' MAB!
by Larry The Bus Driver August 30, 2006
Acronym for "Mediocre At Best".

It is used to describe someones performance or an objects quality.
L: So how did you do on your test?

J: I did mediocre at best (MAB).
by beqone February 13, 2009
Meet and Bowl at online Games.
Gather at a nice (natural) virtual reality place and smoke joints / bong together.
Hey ppl, lets mab now, i need a toke!
by minnox July 09, 2006
Media Arts Boner, when something is visually stimulating in a way that would require extensive and masterful work with camera and/or editing.
"Man, did you see the cinematography of that film shot on the Red Epic, I got such a mad MAB while watching it."
by icancounttopotato93 February 13, 2012
An abbreviation of the word maybe
"Will you come tonight?"
"Yeah, mabs"
by (dwg.) December 29, 2006
"mabs" is an acronym for Mid Afternoon Butt Sweats. The mabs is that moist, slightly unpleasant feeling in your underwear on a warm day or after some physical activity.
"mabs" is frequently preceeded by "the" ("the mabs").
That brisk walk gave me the mabs.
I know it's still morning, but I've got the mabs.
by Brian12 June 21, 2006
Missionised asshole bitch
Set to achieve a task no matter what, usually accompanied by broomstick riding. Or, she is being a mab
by Cplagz January 01, 2010
Mab is the queen of the faeries in Shakespeare's Romeo & Juliette. Girls who are named Mab are beautiful, clever, unique and usually very artistic. Also, one of Uranus' moons is named Mab, and was discovered in 2003.
"wow look at that amazing painting!"

"yeah, i bet Mab made it"
by buffy14 July 19, 2014

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