Mack

1. an abnormally large head
2. someone who regard highly of themselves; cocky
3. someone who is lazy; an arse
4. a selfish person
5. someone who copies work off others and make it their own.
1. He thinks he is smart because he has a mack.
2. You are just as equal as everyone else, so don't be such a mack.
3. Get off your mack and start working.
4. You're a tight-arse mack.
5. That bastard macked my works.
by Allen Pine May 14, 2005
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Mack

A down-right AMAZING girl with the most beautiful eyes, hair, and everything. If you know a Mack keep her because she is probably one of the best friends you'll ever have.
Person 1: Oh my god she's so beautiful!
Person 2: who is she?
Person 3: I bet she's a Mack
by Happy meal time February 12, 2017
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Mack

A narcissistic and cruel person. She pays no attention to other's feelings and uses their hurt to climb higher on the popularity chart. She is a cold-hearted person who needs to find hobbies to live through her sad and cruel life. She is usually accompanied by a boy named Aiden.
Mack is soooo "funny".
by 91837e8 September 28, 2019
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Mack

to have a certain x-factor without effort. A mack can also be described as a John Tucker type character whereby he's hugely popular with girls and worshipped by boys.
mackin is the being of a mack.
"Who's that boy that everyone loves...he's a true mack"
by theoneplayerplease October 30, 2007
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Mack

n. a fat ass or big booty. Any signs of a nice shapely ass
"Damn she gotta mack on her"
"Look at the mack on that"
by M Bizzle. March 06, 2006
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Mack

v- to ingage in any sexual activity with another person
Tonight i am gunna straight up mack.
by Smoketreez April 14, 2009
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macked

to be hit, struck, or destroyed.
bro, Eli almost got macked by that Honda. holy shit
by tellernotelling August 22, 2019
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