MEANING: noun: Someone who is persistently negative and pessimist.

ETYMOLOGY: After Debbie Downer, a character in the television series Saturday Night Live, who frequently brings bad news in even the most cheerful situations. You can also call her a killjoy. Earliest documented use: 2004.

DEBBIE DOWNER - That would be Eddie. (At least the first one was)

DOBBIE DOWNER - Bellatrix Lestrange. With a silver dagger. In the Malfoys' dining room.

DEBBIE DROWNER - unknown. (Wait - it was Natalie Wood who drowned. Oh well - the perp is still unknown)