knock (something) on the head

idiom

Definition of knock (something) on the head 

British, informal

: to cause the end or failure of (something) The closing of the airport knocked our holiday plans on the head.

Learn More about knock (something) on the head

Share knock (something) on the head

Resources for knock (something) on the head

Statistics for knock (something) on the head

Look-up Popularity

Comments on knock (something) on the head

What made you want to look up knock (something) on the head? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a generally accepted meaning of a word

Get Word of the Day daily email!

Test Your Vocabulary

Great Scrabble Words—A Quiz

  • scrabble-tiles-that-read-scrabble-quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!