give your head a shake
give your head a shake
An imperative to reevaluate one's ideas, behavior, actions, etc., or to begin acting or thinking sensibly. Primarily heard in Canada. You need to give your head a shake if you really think ghosts exist. Give your head a shake, John—no one is going to pay for a service they already get for free.
See also: give, head, shake
Farlex Dictionary of Idioms.
- a reality check
- reality check
- hindsight is (always) 20/20
- hindsight
- 20/20 hindsight
- twenty-twenty hindsight
- go hang yourself
- butt out
- Butt out!
- talk some sense into (one)