1. someone who is ultimately afraid of everything or refuses to do something for no good reason.

2. Something so dirty that no one will even go near it; makes you gag.

3. when you put your thumbs and index fingers together in a rounded edged diamond shape and put them on top of your head.
1. person #1: c'mon just jump in!

person #2: no way man!

person #1: stop being such a poo-see!

2. oh god that's such a poo-see! there's no way i'm going anywhere near that!
by vhskater December 1, 2011
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