shaunn-anigans 

When you have a sleep over at your cousin's house, convince them to sneak out in the middle of the night, and then shit on their neighbor's Volkswagen.

Dang! Look! Someone shit on that car! Some kids are up to no good shaunn-anigans.

shaunn-anigans by Aristotle I September 7, 2023

Shannanigans 

Shannanigans are similar to shenanigans, but in the case of shannanigans, they are perpetrated by Shan. It can be assumed that everything Shan does is shannanigans.

"Shan said that the Office is coming back tomorrow, I called shannanigans. I was right."

Shannanigans by daku0g August 4, 2008

Shannanigans 

When you beleive that there is deception or foul play afoot, and you want to be the one that calls it.
You stand up, point at the object/person that you believe to have been involved in the deception and yell "Shannanigans!!" as loud as you can as to attract attention.

However there is an element of risk involved. If you are wrong about the "Shannanigans" call and there is nothing sinister about the situation, you will look like a douchebag

everybody had a hearty chuckle at Jerry when he called Shannanigans on Tom, thinking that he has slept with his wife. Only to find out that he was dead wrong.

Shannanigans by nelly b September 1, 2007