Not know enough to come in out of the rain phrase
Used to describe someone who is very stupid
I didn't expect that he could win because he doesn't know enough to come in out of the rain.
Even though I explained it carefully, she still didn't understand. She does not know enough to come in out of the rain.
To have no money
Extremely stupid
Very stupid, or silly
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