sourpussy

1. someone who is being extremely sour about everything and really bringing down the people around them. Like a sourpuss only worse.
2. a person who doesnt eat enough pineapple.

1. Arielle, stop being a sourpussy and just trick-or-treat with us already.
2. Amanda did not eat her pineapple this morning, and therefore she is in a bad mood.. and has a terrible odor coming from downunder