noun. Said of a fugly, fucked up looking person who is to cover their face permanently if possible.
Justin: Maybe you should ask her out!
Seantel: Ishu crazy??? She a platypuss!
Justin: I kno...bet she put out easy.
Sarah Silverman is such a platypuss!
The most fucked up animal ever concieved!!!
"its got webbed feet.. and its poisonous.. and its stinger is on the back of its leg!! and its got a bill! and it lays eggs for gods sake!! that is one fucked up animal!"