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
nounDefinition 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.
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).
Test Your Vocabulary
Words of Snow and Ice Quiz
- Which of the following refers to thin, bending ice, or to the act of running over such ice?
Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
Anagram puzzles meet word search.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Word Games
- Words of Snow and Ice Quiz
A selection of words from the chillier parts of t...
Take the quiz - Name that Thing: Toys and Games Edition
It's all fun and games until someone beats your h...
Take the quiz - True or False?
Test your knowledge - and maybe learn something a...
Take the quiz - SCRABBLE® Sprint
SCRABBLE® fans, sharpen your skills!
Play the game
Share you know what?