m/a 

minor/adult

As in a minor (under 18 years) and an adult (18+) in a romantic and/or sexual relationship. Commonly used in fandoms in regards to shipping, particularly referring to morally reprehensible and depraved ships that involve pedophilia or ephebopbilia.

Person 1: Do you ship otayuri?
Person 2: Ew, of course not. I don't ship m/a.

m/a by Kensurou May 7, 2017

M'a 

Mashallah.

"whatever God (Allah) wills"

phrase that expresses appreciation, joy, praise or thankfulness for an event or person that was just mentioned

Another reason people use this phrase is to prevent the evil eye or jinxing, similar to the Western idiom "knock on wood"

The phrase is also used frequently by non-Muslims

Person A: Friends of ours had a baby.
Person B: Masha'Allah! ( M'a )

M'a by Ninja in the Dark July 17, 2011

m&a 

1. The vernacular term among investment bankers and lawyers used to refer to the practice of mergers and acquisitions.

2. The career of choice for total dickheads who like to work 80 hour weeks, treat others like shit, and revel in their own self-importance, despite the fact that all they do all day is write boring-ass contracts, listen to boring-ass conference calls, and get yelled at by their higher ups.

Lawyer 1: "Wow, that new guy is really an asshole. Last night we went to Lemon Bar, and within two hours he'd done 13 shots, taken five trips to the bathroom to powder his nose, gotten turned down by 5 skanks, and got in a fight. What department is he in?"

Lawyer 2: "What do you think? M&A, of course!"

m&a by JLB3 April 29, 2005

M-A 

My-Ass

1: dude, i just got a new mitsubishi lancer evolution ix!

2: M-A! You still are $12,600 short.

M-A by AK23 June 25, 2008

M.A. 

The best person in the galaxy. A person who wants to make you smile and make you fell happy every single day.

I'm lucky for having M.A. in my life♡

M.A. by ♡3♡ June 19, 2021

M.A. 

something that is homosexual or when someone does something really stupid or unintelligent or an act that would imply homosexuality. Also a very lousy situation.

in reference to the first state in the USA to allow same sex marriage

I have to go shopping at the mall with my wife so I'm missing the Super Bowl.

"Dude you are so M.A.!"

Or..."This night has been so M.A.!"

M.A. by MMA J February 7, 2010

M.A. 

male society formed to help coax the need for masturbation. Stands for Masturbaters Annoymous.

"Don't jack off, you only have to make it another hour until our M.A. meeting"

M.A. by shabotshalomMoFo January 22, 2005