Top definition
Male name. Also pronounced Aaco, Ako or Aako.

Aco is a nickname for Diaco (Deioces) was, according to Herodotus, the first king of the Median Empire. It is a male name in Kurdish-speaking areas. It is a non-religious name for boys with Medes, Kurdish heritage. It means the leader or the boss.
Aco is a very gentle and intelligent friend.
by IT19A+ May 10, 2017
Get the Aco neck gaiter and mug.
Jul 29 Word of the Day
Someone who used to be a potential girlfriend/boyfriend, but no longer is.
Tim: Zack, is that your exgirlfriend?
Zack: No, she's an expotential. We never actually dated...
by brownsuite September 24, 2011
Get a expotential mug for your mate Riley.
2
Aurora, Colorado

A nickname for the city most often used on social media. Instead of saying "Aurora" or "303" people will often say "ACO." as a shortened abbreviation. Similar to "NYC", or "HTX".
Im gonna go to the ACO tomorrow to see some friends.
by lmao:)))))))) March 13, 2020
Get a ACO mug for your dog José.
3
Nickname for a Large black man with a hunkin choncker of a penis and an unforgettable, phat ass
by HalfMoon May 05, 2020
Get a Aco mug for your grandma Riley.
4
Aco or Aako is everyones friend but will hurt someone if you get on his/her bad side
Aco is my best friend but he hurt that guy at the last fight
by gucciboi679 April 01, 2020
Get the Aco neck gaiter and mug.
5
Hey man he’s such an Aco.

I know right like he doesn’t deserve this.
by _._.... April 27, 2020
Get a Aco mug for your Facebook friend Paul.