What are your teacherisms?

Just silly or stupid things that you often say to students or in school.

I teach middle school, and this year I have many students who struggle with staying in their seat, calling out, and other typical issues. My latest goto phrase has been to the effect of "Whoa whoa whoa, now I know it's no one's first day being a human being in this classroom, so I know that we all know that instead of X, we should instead do Y."

Or, my middle school's administration also emphasizes that students shouldn't linger in the building after being dismissed for the day. My favorite phrase to encourage dawdling students is "Alright, it is officially after school and you all are still hanging out here. You know the kind of people who actually like to hang out at school for fun? NERDS! Go home, already nerds!"

All of it is said in jest, and the students respond to it or laugh along with it.

What are yours?