Peanut Butter and Asshole Sandwich 

When someone tosses someone else's salad, but uses jelly or preserves instead. It is unclear why this is called a "peanut butter and asshole sandwich" if it has no peanut butter, but it does have a ring to it.

When giving people a peanut butter and asshole sandwich, strawberry jam should be avoided because of the tiny seeds.

Peanut Butter and Asshole Sandwich by Hass July 19, 2005

Peanut Butter Jelly and Asshole Sandwich 

The act of placing peanut butter and jelly inside your ass. Then forcing someone to eat all of it out of your ass.

I call it a peanut butter jelly and asshole sandwich, but Tom here, would be calling it lunch.

Man 1: Hey dude, wanna go grab some lunch? Man 2: Naw bro I'm good. Your mom served me a hell of a Peanut Butter Jelly and Asshole Sandwich.

Peanut Butter Jelly and Asshole Sandwich by Noushbag April 13, 2011