Definition
To reassess the common sense of one's behaviour, ideas, etc.
In Context
- "If you're thinking about topping your burger with ketchup, mustard, relish and perhaps a couple of pickle slices, you might want to "give your head a shake.""
- "But give your head a shake, people. Stop pushing for Wi-Fi at campgrounds around B.C. The entire premise of going camping is to escape from the hustle and bustle of our busy lives."
- "Talk about focussing on the unimportant. Give your head a shake, Google."