A beetle brain American British noun slang
A person who is low-witted or stupid
I know you're a smart guy, but sometimes you act like a beetle brain.
I don't know why my brother is such a beetle brain when it comes to physics.
Don't ask him these questions. He is a beetle brain.
To have no money
Used to describe someone who is naive, gullible, inexperienced, easily fooled, ignorant, unsophisticated, etc.
To say, or believe something or someone that seems completely crazy, delusional, or stupid
To be extremely stupid; not to be alert
Be ignorant innocent or totally unaware; not know what's what
To be very wet
Because of forgetting bringing an umbrella, I look like a drowned rat when it rains.