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To have sexual relations of any kind, possibly in a covert and/or sketchy fashion.
I heard Megan was trying to schnoop Andrew.
They were schnooping each other last night on the mantel.
by AM12 August 29, 2008
A person who snoops unharmfully and unintentionally.
Your neighbor is staring right at us! Oh don't worry about him he's just an old schnoop.
by beb. October 22, 2007