Shenanigans is commonly used to describe mischief and prankish antics, as well as to illegal or unethical behavior.

Time to back up and wipe my hard drive and start all over! Hopefully Windows doesn't have some April Fool's shenanigans up it's sleeve…

— Matt Zagursky (@Sevadus) April 1, 2015

I don't believe election fraud is widespread but as a former Philly guy, you should definitely take polling place shenanigans seriously

— Patrick Ruffini (@PatrickRuffini) August 13, 2016

To our credit, England's distaste at FIFA's shenanigans usually leads to us leaving the World Cup in disgust very early on.

— John Allison 🥈 (@badmachinery) May 27, 2015

Did you mean shenanigan?