rocks in one's head, have
have rocks in (one's) head
To be thoroughly stupid, crazy, absurd, incorrect, etc. You must have rocks in your head if you think the bank will approve you for another loan.
See also: have, head, rock
Farlex Dictionary of Idioms.
rocks in one's head, have
Show poor judgment, act stupidly, as in If you think that's an accurate summary, you've got rocks in your head. The rocks in this idiom are a supposed substitute for brains. [Slang; 1940s]
See also: have, rock
The American Heritage® Dictionary of Idioms by Christine Ammer.
- have rocks in (one's) head
- have rocks in head
- have got rocks in (one's) head
- What are you on?
- What color is the sun in your world?
- what planet are you on?
- What planet is (someone) on?
- what planet is someone on?
- What planet is (someone) from?
- garbage in, garbage out