knock on the head

Verb

Meaning

knock on the head (third-person singular simple present knocks on the head, present participle knocking on the head, simple past and past participle knocked on the head)

(transitive) To put an end to; to defeat or frustrate (a scheme or project).

Source: en.wiktionary.org

Close letter words and terms

knock on my door knock on the door knock on the door of knock on wood knock one off knock one out