The word you use when you wanna call someone a Pussy, but can't think of a less offensive way of saying it. But you are also too stupid to realize that you could've used the word Wussy.
Lori: That movie the lady in black gave me nightmares!
Shelby: What?! You're such a pewssy!
Everyone: Wth is a pewssy?
Shelby: I didn't wanna call here a pussy!
Chris: So you mean, a wussy?
Shelby: omg YES!