When someone gives really good head.
Man Stacy's mom makes a mean sandwich! Anyone would pay for a BJ that good.
A crab sandwich which is a bad decision, made in error by someone thinking it was initially the right thing to do or something that would be nice.
Going home with that girl last night turned out to be a crab sandwich
A cheese sandwich with a layer of strawberry jam for good measure.
Bread good... Cheese good... Strawberry jam good... Cheeseberry sandwich mmmmm
An aesthetically pleasing female posterior.
Dang, you see her walkin' by with that cornbread sandwich?
Where a guy named Zak is getting fucked by two of his admirers.
Want to go back to your place and make a Zak Sandwich?
when a guy sticks his dick up a girls vagina
bro we just made a pp sandwich
A form of male masturbation where you cross your arms and use the back of your hands to hold your penis.
The hairier your hands are, the closer the experience will be to a 1970s vagina.
Todd: Oh shit, sorry man. Wait, what are you doing?
Stan: It's called the Backwards Sandwich, dude!
Todd: Huh. I uh, think I'm going to make a sandwich for myself.