(everyone at his school also calls rock-paper-scissors "roshambo," which none of the second or third-generation CA natives I know had ever, ever heard of until a couple of years ago).

Huh. I'd never heard it called Roshambo until I moved here. Relatedly, we called the mixed-up sodas Suicides or Kamikazes.

My mom grew up here and calls mixed soda a "suicide" as well.

Emmett has always called it a Suicide Soda (and so, I presume, have all his friends).

A little bit of everything? (Missed the original question) Yep, that is what K-Bug and her friends called it.

Here's a radio show featuring discussion of suicides (the soda mix): [link]

Emmett has always called it a Suicide Soda (and so, I presume, have all his friends).

Yay, someone else has heard of this term! I thought it was maybe just a Chicago area thing.

everyone at his school also calls rock-paper-scissors "roshambo," which none of the second or third-generation CA natives I know had ever, ever heard of until a couple of years ago

That's a word I've only started hearing a few years ago, too. I think I first heard it while watching the World Series of Poker a few summers ago--they had a "Roshambo" mini-tournament in the middle of the poker playing. We always called it "rock-paper-scissors."

I certainly hope that's Rochambeau.

I have never heard of the soda thing.

In related regional beverage news, I refuse to call a half & half an Arnold Palmer.

I'm pretty sure the only place I've seen roshambo used for rock-paper-scissors is on this board.

Today is the first time I had ever heard of a Suicide.

I refuse to call a half & half an Arnold Palmer.

Guinness and Harp is called an Arnold Palmer? What weird-ass, golf-obessed part of the world does THAT?

I love calling it Arnold Palmer! Not sure why.

Ok, and Urban Dictionary says roshambo is when two guys kick each other in the balls until one of them falls over. Which doesn't sound like any version of rock-paper-scissors I've ever played.