Top Definition
Can describe either a male or female. It means you are a VERY dirty person, and you'll do almost anything for ANYONE. You like doing things often called inappropriate.
Female 1: "You know Jessica right?"

Female 2: "Yeah, why?"

Female 1: "She's a TOTAL sewer platypus, she brags about getting sleezy very easy..."

Female 2: "OMG"
by SewerPlatypus713 May 22, 2011
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