›to use energy, effort, force, etc., especially until there is no more left: For the past month he's been spending all his energy trying to find a job.They continued firing until all their ammunition was spent (= there was none of it left).The hurricane will probably have spent most of its force (= most of its force will have gone) by the time it reaches the northern parts of the country.Her anger soon spent itself(= stopped).Using and misusing