surprise vent 

when someone vents without permission - normally out of nowhere

W: “dude, J surprise vented again when i woke up from my nap earlier this afternoon”
M: “no way are you okay?”
W: “surprise venting sucks!”

surprise vent by anonymous May 5, 2024

Ventriloquist surprise 

The act of sneaking up on a person and shoving your arm up there anus till you can control there mouth like a ventriloquist dummy

Hey dude I pranked your brother with a ventriloquist surprise.

Ventriloquist surprise by Rexstfs December 23, 2021

Surprisement 

n.
Ones surprise

He showed his surprisement when he exclaimed the phrase:
"fo' shizzle ma' nizzle my shizer is fux0red"
as he fell off the roof

Surprisement by MoFoS October 11, 2003

Surprisement 

Its is a word that discribes the action immediately after you are surprised!!

A Surprisement burp or a Surprisement fart.

Surprisement by A.k.a bones December 19, 2011