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a term used to describe exceptional drama teachers. most often used when one wishes to identify a drama teacher that is performing above expectations in the area of coolness and overall student relations. with a "crouching tiger hidden dragon" attitude, a renniesan will let student bend rules till they cross a line then a renniesan unleashes hell.
renniesan is the shiznit ftmfw.

i wish all the teachers could be renniesans.
by Dr. Jless October 07, 2011