Placing or forgetting a used condom, and having someone else step and/or slip on it.

Briefly, "the realization that each random passerby is living a life as vivid and complex as your own." Originally from the Dictionary of Obscure Sorrows, which has a lot more beautiful neologism definitions like this you might enjoy.

To make oneself feel pleasure by inserting banana peel onto penis, one can decide to eat after during or before. Usually this is performed by Devin Goodnight

A klonopin/clonazepam pill. It is yellow and sweet to the taste, similar to a banana. When you eat them, it is not uncommon to suddenly lose your balance, as if you had stepped on a banana peel. This is known as slippin.

a condom when you are finished using it.you take it off your penis like a banana peel and your dick is like the banana.

the skin on the outside of a penis. Most visable when not erected

A Banana Peel is a prank. In order to do this prank you must use a condom, after that you turn it inside out. You then throw the used condom on the ground, preferably in a well traveled location. You then wait, after a while somebody is bound do slip on it, like a banana peel.