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1.
A word said in akward situations. Commonly used to express one's inner feeling's e.g excitment. This word is mostly used by confused and flusterd people. . .
When in doubt shout MARRR
by Miss Marrr April 08, 2011
 
2.
what you say aloud when something occurs that brings one joy and excitement
Do you want to hit this? .... Marrr!
by C Michael December 09, 2007