Cantrip is a noun that refers to a mischievous or playful act or trick.

The origin of our word of the day is not clear, but we can say with certainty that it’s been around since the late 16th century and it’s used as a synonym for prank. Here’s an example:

I’ve been known to play a cantrip or two on co-workers from time to time. It’s gotten to the point where every time somebody sits down they have to check the seat to make sure they’re not getting victimized by another prank.