look up any word, like seattle snorkeler:
 
1.
When one party hits a second party's genitals with the back of their opened hand. They must also say, "Gershwin," for it to count.

Try it on a friend today...or better yet and unsuspecting stranger.
Tim and Jon are singing in chorus when Snyder sneaks up behind them. Snyder says, "Hey guys." They turn. SLAP! "Gershwin!"

by Kevin Regan April 11, 2006
 
2.
Garrett Hidey; Stupid!
"Looks at me with his crooked smile while Gershwin plays." Moe. - New York City
by George Gershwin April 25, 2003