Top definition
A condition where the afflicted person loudly continues a croud cheer after the rest of the croud has fallen silent. As this is the only symptom, it can be hard to recognize people with ACS unless attending a sports event or similar function.
Croud: "Let's go panthers!

Let's go panthers!"

Person with Awkward Cheer Syndrome: "Let's go pan..."

Croud: *silence*
by Concordia Discors February 11, 2010
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