When two people are bent over ass-to-ass while a third person stands and squats above them (with one foot on each back), thus creating a thrusting motion between the two asses. All of this happens whilst listening to Space Oddity
Hello! I'd like an astronaut sandwich please!
a sandwich cooked in a jaffle maker.
Dad, can you please make me a sandwich pa?
While having intimate relations with your partner you grab a live chicken/rooster and place it in between the both of you and you try and kill the chicken with your pelvis then cook it up for dinner that night.
Yo dude, I heard you had the chicken sandwich last night!.
Yeah..
Niiiiiiccceee
When seated between two geezers, and forced to hear inane and/or poorly heard conversations.
I was in a senile sandwich on the plane ride home, seated between two old ladies who couldn't hear each other's conversation.
When a state of orgasm is reached due to the deliciousness of the sandwich being consumed, usually of toasted cheese orientation.
Kevin: "That sandwich doesn't look half bad. Hows is it?"
Stephen: "It's so good. I think I'm having a sandwich-gasm"
When two people sext each other with someone unaware of the sexting sitting between them. The person sitting between two people sexting each other is in a sexting sandwich.
Hey Kaysie, you're in the middle of a sexting sandwich!