You put the penis in between the tits and the girl sucks the penis.

Since almost everybody else is too busy making childish jokes, I'll be one of the ones who gives the real definition:

The greatest food ever. It basically a piece of meat put between two pieces of bread. cheese, ketchup, mustard, mayonnaise, and BBQ sauce make great toppings.

The act of placing one's meat in-between two buns.

In other words, to give someone an anal.

A chick's pussy that has been fucked by too many guys. It looks like a raw hamburger.

Getting sandwiched but worse.

It's getting sandwiched but worse.

Something you can order from McDonald’s

Something they have on there menu