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2.
A simile used in meaningless context after any verb.
She was screaming like a banshee all night long after I rode her dirty like a banshee.
Art was driving fast like a banshee in his '92 Chevy pickup.
by Jimmie Hat July 05, 2006
 
1.
Something done in a continually wild, loud, out of control manner, especially if it seems surprising given the person, activity, manner, etc.
She may look innocent, but she screws like a Banshee!
by Ooooooya August 02, 2007