ACS 

Advanced Competitive Science. A class used to fundraise money ergo the teacher eats the money and calls the students sheep and boneheads. It consistes of making crap out of legos and then having it taken apart by the teacher because it's not fucking crossbraced right.

Stop being a pervert in ACS.

ACS by nato couto mario April 27, 2007

ACS 

AC schnitzer... best aftermarket company EVAR!!!

ACS by jimbob February 15, 2003

ACS 

ACS or American Clan Syndrome, was first documented in the Soldat (www.soldat.pl) community by someone who goes by the name of flab. The symptoms are unloyalty to anything, and wanting to change clanmates and clans itself every month. Because of ACS, American clans rarely last more than a month at best.

The american soldat community

ACS by Hektik Sniper July 11, 2004

aCs 

Anti Cheat Squad
a clan/squad/team from an online multiplayer game A.R.C.

"yo I'm so l33t because I'm in aCs!

aCs by DJBLAZE May 13, 2003

acs 

a class where you can humiliate your self by choosing random topics and speaking about them infront of your peers.

I have ACS with Laura and the Mormons!

acs by Mormon March 8, 2005

acs 

a blocky gun system on a blocky game and is very retarded

I FUCKING HATE ACS

acs by dieterlover October 1, 2021

ACS Law 

A known 'scam' lawfirm that operate on the basis that innocent people are too scared by (barely)legal letters to fight them.

See: slyck.com/forums/viewtopic.php?p=541494

ACS Law just sent a threatening letter to my elderly grandmother claiming she'd shared pornography online. She's in tears despite knowing she's never owned her own internet connection.

Sorry Mr. Smith but my daughter hasn't done her homework this week because she received a letter from ACS Law threatening to ruin her life.

Gavin, how are those idiots at ACS Law still practicing? Surely they're banned from the UK by now?

ACS Law by Online Pirate September 23, 2010