1) The sound made by a cat when vocalizing what is somewhere between a purr and a meow.

2) Can be used by humans to respond to questions where the person being asked is unwilling or not knowledgeable enough to answer.
1) "Did that cat just purrow ?"

2) "Did you just eat 12 balls of cookie dough ?" "Purrow..."
by Tom Tac December 5, 2011
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