you know what?

idiom

Definition of you know what?

 (Entry 1 of 2)

informal
1 used to emphasize the statement that comes after itYou know what? I never trusted her.She lied to me again, but you know what? I really just don't care anymore.
2 used to get someone's attentionHey, you know what? I'm hungry.

you-know-what

noun

Definition of you-know-what (Entry 2 of 2)

informal
1 used in speech to refer to something that is not named but is known to both the hearer and speakerI've hidden the you-know-what in the closet.
2 used in place of a rude or offensive word in order to express anger or annoyanceHe's a complete you-know-what.

Learn More about you know what?

Statistics for you know what?

Cite this Entry

“You know what?.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/you%20know%20what%3F. Accessed 21 Oct. 2020.

Comments on you know what?

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

WORD OF THE DAY

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Citation

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!