Polston Surprise 

When a man is fucking a girl from behind and spits on her back to stimulate nutting, then pulls out and proceeds to tell her that he has nutted. When she turns around he jerks himself and nuts on her face, much to her surprise.

Originated in Kansas by a man who’s name will be changed to protect his identity, here he will be called Mike. The first written record of a Polston Surprise was a letter to the reader story section of Play Boy magazine in 1989 the August issue, by Mike himself. The Polston part of the name is unknown in origin.

Alex gave that girl a Polston Surprise last night, she didn’t see THAT coming

Polston Surprise by Bigtuna6969 March 15, 2019

Surprise Lake Camp

The Best in Jewish Camping. If your idea of a good jewish experience is hooking up and trying not to get caught. The campers are clueless to what the staff is truly like and the staff does a really good job at doing things to get fired. The importance of second place is very important and remember, if the lights go out, nobody move. But obviously, it's the best summer home anyone could ask for.

Oh you went to Surprise Lake Camp? Have you ever gotten bitten by a snake while behind the equipment shack?

Surprise Lake Camp by Campcampcamp January 26, 2015

Brown Surprise

When you think you're gonna fart but a dookie comes out.

James: Bro I thought it was gonna be a fart but then I shit my pants!
John: You just got hit with a brown surprise!

Brown Surprise by shitmypants January 13, 2021

Kangaroo Pouch Surprise

A Kangaroo Pouch Surprise is when you clasp your penis in one hand while the other hand is in the shape of the middle finger gesture. The middle finger pushes down on the head of the penis, causing it to go inside the penile shaft, forming a baggy of skin. Very quickly the middle finger hand pinches off the skin, creating a "kangaroo like pouch". You then proceed to urinate, thus filling up the pouch. When you release your fingers, the urine filled pouch bursts everywhere creating a "surprise" of urine.

Cooper wanted to impress Beth by showing her that he can successfully perform a kangaroo pouch surprise on her stomach.

Kangaroo Pouch Surprise by Jrrywbb May 12, 2016

surprise blumpkin

The act of shitting oneself whilst receiving a blowjob, unbeknownst to the bestower of the blowjob

After I gave her a surprise blumpkin I made her clean up the mess I left in her bed.

surprise blumpkin by a fatter December 17, 2010

Surprise Mechanics 

What EA(electronic arts) uses to describe lootboxes to try and avoid government involvement from their games.
Along with this, they have likened their fanbase's consumption of lootboxes in games such as FIFAto the consumption of a Kinder suprise egg, which unlike lootboxes doesn't come packaged in an already 60 dollar video game and has some sick ass toys in it and doesnt have less than one percent drop rates for highly wanted items
The GIF you can see below is a representation of EA's higher ups profiting off children who spend all of their parents' money on "Surprise Mechanics" in the hopes of getting their favorite soccer player in FIFA

"They aren't lootboxes, they are just surprise mechanics!"
"It isn't kidnapping, it's just surprise adoption!"

Surprise Mechanics by tiddeh July 19, 2019

poop purse surprise 

The nearly lost art of shitting in a purse then placing it where it will likely be found (shopping cart at a grociery store parking lot) then waiting to see the reaction of those who "find" it.

Works just as well on good samartitans as the lesser well intentioned.

I just got a new video camera, lets go to the mall and run the poop purse surprise.

poop purse surprise by Mike Cheezmar December 8, 2012