The phenomenon that happens to folks, usually born prior to 1950, at Starbucks when they suddenly freeze and have no idea what to say or do when the barista
asks them for their order when trying to order a plain old cup of coffee.
Usually followed by growns and exchanged glances among the snotty Starbucks whores in line behind them.
Can also be associated with the shock of paying more than $.25 for a cup of coffee.
Jesse: "Dude! Did you see that geezer get the Starbucks Stutter when he couldn't even order his joe?"
Sam: "Yeah! That was some serious java stage fright!"