Considered a euphemism for a brief or elongated stabbing or shanking, perpetrated by one person on another.
Ever been to Penn Station? I got a Giles Surprise in the bathroom and then they walked off with my wallet.
by Blimbardo May 22, 2021

When a girl gives a guy a handy, well her hand is covered in maple syrup. Then when the guys dick is hard enough she shoves a maple bar on it and proceeds to give him a blow job well eating the donut off his dick.
Chad: I went over to Rachels house
Shawn: You get head?
Chad: Better a Canadian surprise. There was maple syrup everywhere.
Shawn: You get head?
Chad: Better a Canadian surprise. There was maple syrup everywhere.
by simpmanager May 28, 2022

I went to Chicago banking on deep dish pizza but ended up having these bomb ass profiteroles! What a philly surprise!
by Barfmeister August 6, 2018

“ Ay remember that girl I left with last night?”
“Nicaela! Let me guess she gave you the South African surprise?”
“I woke up and my shit was itchin. How did you know?”
“Bruh she gave them to Ray Ray last month.”
“Nicaela! Let me guess she gave you the South African surprise?”
“I woke up and my shit was itchin. How did you know?”
“Bruh she gave them to Ray Ray last month.”
by Roachykins May 28, 2018

those flakes that are forgotten by the toilet paper and they itch (Poor Hygiene) Morbidly obese people are prone to this (they cant reach)
Logan's nurse came over to give him his sponge bath and exclaimed "You've done it again Logan You've left me a crusty surprise!"
by Flying dutchman July 2, 2015

When you accidentally dip your balls in the smegma supply chain, causing a disruption in the scrote-shaft.
by that guy that is guy lmao March 1, 2022

A sandwich that may or may not have a dead rat inside. Upon ordering the Dead Rat Surprise at any sandwich shop, an employee will slice six loaves of bread and toss a dead rat into one. They will then roll a dice and use the bread indicated by the die for your sandwich. The other loaves of bread will be served to other customers.
I ordered the Dead Rat Surprise at Subway last night. I feel bad for the fool who got the rat sandwich.
by averagemint May 7, 2022
