Use your head!
use (one's) head
To use one's own intelligence and intellectual ability; to think logically and rationally. In this phrase, "head" refers to one's brain. Often said as an imperative. Come on, Dean, I know you can figure this out on your own. Use your head for a change! We'll have to use our heads if we're going to have any hope of solving this supply issue.
See also: head, use
Farlex Dictionary of Idioms.
Use your head!
and Use your noggin! and Use your noodle! exclam. Think!; Think it through! You know the answer. Use your head! Use your noggin’, dogg!
See also: use
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
- (from) top to toe
- (one's) day in court
- be on (one's) pat
- (there's) no peace/rest for the wicked
- at (one's) doorstep
- at doorstep
- (one's) jig is up
- at will
- at somebody's expense
- at (one's) expense