What's on your mug?

After Concert Shock When you get that really high pitched ring in your ears after a concert or listening to your iPod on full blast

Fan 1: "How was AC/DC last night?" Fan 2: "What? I can't here you I got ACS!"

By headbanger1992

If your from acs your bent

What school you in? Acs Ahaha bent fucker

By C2bunney

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.

By nato couto mario

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

By jimbob

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

By Hektik Sniper