Green Flash 

Looking West, at the Ocean, just at sunset when the last part of the Sun dips below the horizon, there's a brilliant green flash, similar in color to the green seen thru prisms. It lasts less than 1 second. A rarely~seen natural phenomena!

I was fortunate to see the Green Flash at the Cliff House at San Francisco, California. Only later did I learn that it's rare to see this!

Green Flash by Starchylde May 28, 2016

Dunlop Green Flash 

A training shoe originated in the 1930's . Often worn by middle aged men trying to look cool , but failing drastically .

"Look at him in his Dunlop Green Flash , he thinks he's down with the kids "

Dunlop Green Flash by Yolo4ever December 17, 2013

Flash My Greens 

To make ones wealth known, to be deliberately ostentatious, to be frivilous with money. See also greens

"I went up to the counter and flashed my greens and they gave me the best seat in the house", or "Tonight I'm going to pick up my date, take her to the club and flash my greens."

Flash My Greens by Martron December 9, 2008

greenflash 

show me the money

Just greenflash me and I will know you're serious about the deal.

greenflash by gentry man May 7, 2013