Define Negative Nancy Meaning

2nd grade teacher: "All right kids, today we're going to learn an important lesson: how to pack your rock into your crack pipe."
Johnny: "But Mrs. Stoner, my mommy told me drugs are bad."
Teacher: "Johnny, stop being such a negative nancy. You'll never get anywhere in life with that attitude."
Johnny: "But, my mommy said..."
Teacher: "Johnny, please shut the fuck up or I'll send you to time out and brutally murder your family."

Tae Yoo is a negative nancy with his PMS'ing tendacies. He sometimes needs to be alone during his 'special woman' times. This happens at least once a month.

sailor: Sak, your being such a negative nancy! why cant we swim or tip?
Sak: i have the authority, shut up

Man walks in to a room with hands on his hips and sighs.
Cliff: Goddammit Marc, why are you always being a Negative Nancy?

Unusually tall, broad-shouldered Pennsylvanian woman on a Seattle public bus, forcing her opinion on the uninterested third party seated next to her: "Are you HEARING the filth coming from that teenage boy's mouth, three rows ahead? A real negative nancy, I tell ya!"

PJ is a negative nancy.

Jack: Way to go Billy...a grand slam!
Tom: God, it's about time he only struck out the last four at bats.
Jack: Just shush and quit being such a Negative Nancy and be thankful it wasn't a fifth strikeout, but it was a grand slam.

negative bad outlook

Johnson, that man is a real negative nancy

She's such a "Negative Nancy" today.

Ian is really being a Negative Nancy today.