Definitions

1. noun

a vicious or mischievous person, especially one that is considered to be troublesome or annoying; a wild animal, especially a rabbit or other small mammal

“The farmer tried to get rid of the varmint that was eating his crops.”

2. verb

to act as a varmint; to behave in a vicious or mischievous way

“The kid varminted the teacher’s patience by constantly disrupting the class.”