you're a numbskull
you're a numbskull
You are really stupid. If you think no one will catch you cheating on your exam, you're a numbskull and deserve to get caught.
Farlex Dictionary of Idioms.
- on one's
- on someone's
- out of one's
- (I've) got to go
- save someone's skin
- (Have you) been OK?
- #dead
- other than
- other than (something)
- pillow-biter