The act of quitting one's job in flamboyant fashion, so named after Steven Slater, the JetBlue Flight Attendant who dealt with one unruly passenger too many. He cussed out the passenger on the PA, said bye-bye to a 20 year career as a flight attendant, grabbed some beer from the galley, popped the escape slide, jumped out on the tarmac, walked to his car and drove home, thus becoming an instant folk hero.
"Psst! I hear Jason the rugby captain has a boyfriend. I'd never have guessed he was a slate off the roof!"
"Am I heck as like wearing that flowery- concoction- thinly disguised- as -aftershave on my night out with the boys. Do you want them to think I'm a slate off the roof??"