Top Definition
Having or showing an advanced lack of common sense, judgment or foolishness marked by periods of over excitement, euphoria, and overactivity that ultimately helps one cope through the most boring of (work) days.
A foolish obsession (often used as a form of address): "Come on, sillymaniac".
Keep your sillymania under control, the rest of us are trying to work here
He had a case of sillymania that kept us entertained all day
My jaws hurt from laughing, stop your sillymania!
by Deana Weana May 23, 2013
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