Lacertilia - A word that can make a student's day turn into a nightmare a

A word that can make a student's day turn into a nightmare and a teacher's week into a bad dream.

I got called Lacertilia in front of my whole class. It was the worst day ever.

My sister got called Lacertilia and she cried all the way home.

My friend got called Lacertilia and he got grounded for a week.