Top Definition
the syndrome associated with the feeling or need to attend a music concert of any genre.
me-I have C.A.S. so bad right now
them-whats C.A.S.
me- Concert attending syndrome (C.A.S.), I need to go to this show like a diabetic needs insulin

them- well I guess I have C.A.S. too then
by guitar-ratiug March 19, 2014
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