Something that is very cosmopolitan and ny city.
Often used to describe activities that people in their 20's do.
Have you seen that girl in her trench coat sipping cocktails, that is so COSMO!!
by flemdelaflem May 29, 2012
Get the Cosmo mug.
A wannabe gangster that dwells in the streets of New Jersey where the thugs are tough and the education even tougher. Is prone to making up insults over the internet to try and make his low-self esteem not appear as bad as it is, though most people know his dad beats his self esteem out of him every night.

He is also capable of intensely destroying the English language with every sentence to point where they call him the Hitler of literacy. Personally, some believe this man to want the English language to disappear all together.

When approaching a wild Cosmo just be prepared to be yelled at and attempt to be instigated into a fight, though you are the pussy if you don't go to fight him and not vice versa.

Be extremely cautious.

Very dangerous.

Hurts feelings.
Yo, this fugazi nerd tried to pull a Cosmo on me.

But I put him in his place like the rest of the world puts Cosmo in his place. Especially his dad.
by PastryEsque July 11, 2014
Get the Cosmo mug.
a gay person. their nickname is probably mo and they are Queer. As Fuck. yeah
person 1: omg is that cosmo???
person 2: Yes That Is Cosmo, They Are A Homosexual
by ZoeWilly1006 October 16, 2020
Get the Cosmo mug.
A generally distrustful person who keeps his eye on the prize, however he does care about certain people who have been his friend and helped him through struggles, he however is aggressive when he feels insulted or another has challenged him
Come at me Cosmo!!!”
by Millyfnaf May 9, 2018
Get the Cosmo mug.
An amazing looking young lady, more than a dime.
Did you see Noelle today?! Man she is for sure a cosmo!
by J. Pelli November 16, 2007
Get the Cosmo mug.
a skinny, slim, frail and tiny pasty white boy, with no common sense or intelligence. an absolute retard. can’t lift a feather or a stick, if his life depended on it.
by godnigger June 10, 2020
Get the Cosmo mug.
He is a thicc dirty daddy. Very kind, funny, and amazing In general
Dang he’s a cosmo for sure!
by Hot sister Cheeto March 9, 2019
Get the Cosmo mug.