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Also known as Hate Authority Crew or Hustlers Ambition crew
A local Graffiti crew in Boulder,CO
They are some of the best in Boulder County
Hey man I saw H.A.C. paint at the big wall man they are good
H.A.C. by H.A.C. Member September 30, 2008

H.A.C.'s 

Abbreviation - Hidden agenda cuddles.
Usually used when you are trying to gain something from a parent or significant other, or when you are trying to persuade them to let you do something.
My mom said I wasn't allowed to go to the concert last week, but a week of H.A.C.'s and I finally persuaded her
H.A.C.'s by TomYaa November 22, 2011

H.A.C.K.E.R.S. 

Highly Advanced Computer Kids Entering Restricted Systems
to become a Hacker you must be a Highly Advanced Computer Kid that can Enter Restricted Systems.

h.a.c.k.s 

H : hanya
A : aku
C : cinta
K : kau
S : seorang
got it???

e.g :
babe : H.A.C.K.S
boy : me tooo!!!
h.a.c.k.s by nias October 21, 2007

H.A.C.K.S. 

A word for teenagers from grandparents: Happy Adolescents Challenge Kind Seniors
Billy: *plays music too loud**dances with friends*
Grandma: You guys are just a bunch of H.A.C.K.S.
H.A.C.K.S. by H.A.C.K.E.R. May 5, 2022

H.A.C.P.O.A

The acronym for an exclusive secret society called The Ham and Cheese Purists of America.
person 1: listen, I need you to make me a ham and cheese sandwich.
person 2: with bread?
person 1: of course not man, I'm a part of H.A.C.P.O.A
H.A.C.P.O.A by curlyfrenchfries January 28, 2024
More from Urban Dictionary
anyone who succeeds in disgracing/over indulging themselves in the throws of clubland
28 hours and 4 clubs later, gurning for england but still refusing to go home - a total wrongun!!
wrongun by bevvers March 21, 2007
Word of the Day on October 8, 2026

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
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