Smatchet is a noun that refers to a contemptible or unmannerly person.

Our word of the day has a mysterious origin, but it appears to be from Scottish. Smachet is never a flattering thing to call someone, but if you must use it, here’s an example of how it’s done:

At first I thought the guy who took the last donut from the box at the office was a real smatchet. But after retracing my steps I realized that contemptible person who swiped the final apple fritter was me.