We found 2 dictionaries that define the word to knock on the head:

General (2 matching dictionaries)

1. to knock on the head: Wordnik
2. to knock on the head: FreeDictionary.org

▸ Words similar to to knock on the head ▸ Usage examples for to knock on the head ▸ Idioms related to to knock on the head ▸ Wikipedia articles (New!) ▸ Words that often appear near to knock on the head ▸ Rhymes of to knock on the head ▸ Invented words related to to knock on the head