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1 definition by nato couto mario

 
1.
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.
by nato couto mario April 17, 2007