kick somebody in the teeth

kick somebody in the ˈteeth

(informal) treat somebody badly or fail to give them help when they need it: The workers feel they’ve been kicked in the teeth by their employers. They have met all their orders this year but are still being made redundant. ▶ a kick in the ˈteeth noun: I expected to get that job. It was a real kick in the teeth when I didn’t.
See also: kick, somebody, teeth