2 definitions by Kane Bell

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Means you are completely confused and show it on your face. Named after the expression used in the Smosh video If Movies Were Real
Jafro had a confused RIP Marv expression on his face after Rozzo baby boi said something confusing.
by Kane Bell July 21, 2010
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when something is completely unknown
Richard asked Joe "what does god look like?" and Joe replied with "Big Dunno"

why the donkey ate the rats burger was a big dunno
by Kane Bell April 10, 2010
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