I occasionally like to get my snack on when I play my videogames. My go to for snackage is usually some corn-chips and a glass full of iced coca-cola. What is your "Gamer Grub"?
Yeah I don't really eat while playing games, nor do I listen to any music or anything like that. When I want to play a game I will go and play a game, if I get hungry I will turn the game off and go grab something to eat.
I aways have my Bobble with me at all times though, drinking is a different matter.
I can eat anything if I'm playing a game, but I'm less likely to do so with a sandwich that requires both hands, except in the off-chance that I'm playing a DS game where one finger can suffice (Ace Attorney or Layton usually).
More often than not, though, whether I'm playing a console or a handheld, I usually get something that can be eaten with one hand and are bite-sized. These are typically Cheez-Its, or berries, like Strawberries or Blueberries.
I do not snack. If I would snack, it'd be on pushups. That's how I consume my gamer's rage actually.
My drink of choice is either strong black coffee (not more than 2 mugs a day) or 1 part fruit juice in 10 parts of water. Cranberry juice or a Strawberry&Apple&Orange vitamin juice. Green Tea, if I manage to buy some mild and sweet variety.
My gamer grub is guilt, because that's what immediately comes after any gamer grub. I'm trying to stick to a healthy diet, so the inevitable violation leads to a sense a stupidity at making such a stupid decision.
After berating myself, however, I'll take the unorthodox choice and say... ice cream sandwiches (neopolitan). Their fragile state only enforces my need to stuff my face with them. I went through half a box yesterday. Felt so bad, but it felt so goood...
I eat large quantities of whatever horrible food is available at the time whether that be deep dish pepperoni, and mushroom pizza, Chinese food, hamburgers, ice cream etc. It all makes me feel like a bloated cow afterwards, but really enhances the gaming experience.