shenanigans

noun

1. Mischievous play, especially by children.

- Billy and Tom are playing noisily upstairs again. They're up to their usual shenanigans.

2. Deceitful trick(s); trickery, games.

- You should learn to spot their shenanigans and avoid being fooled.

- The advertisement said it would cost $50, but they charged me $75 at the register. I declare shenanigans.