Definition of you know something?informal
- You know something? I never trusted her.
- She lied to me again, but you know something? I really just don't care anymore.
- Hey, you know something? I'm hungry.
: to perceive directly : have direct cognition of
: to have understanding of
: to recognize the nature of : discern
: some indeterminate or unspecified thing
: some indeterminate amount more than a specified number
: a person or thing of consequence
: in some degree : somewhat
used as an intensive giving adverbial force to an adjective
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