Another shortened version of 'goodnight'. Coined by Fizban in mIRC.
Well, I'm out, folks. Nighty.
by Fizban April 16, 2004
The most amazing person.
That guy is a nighty. He's a top quality guy.
by Jim March 16, 2003
A massive emo queer, most usually weeping whilst listening to Morrisey.
< nighty-> OH I LOVE MORRISEY, he makes my lady bits tingle.
by durz|work October 24, 2009