I’ll tell you what idiom Meaning

Definition and Meaning

I’ll tell you what is an idiomatic expression in English used to introduce a statement or opinion, often with emphasis or a suggestion that what follows is noteworthy or significant. It can also be used to indicate surprise, insistence, or the speaker’s strong feelings about a particular subject.

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Etymology

The idiom combines the phrase “I’ll tell you”—where “I’ll” is a contraction of “I will,” indicating future action—with “what,” which is a pronoun referring to the information being shared. The phrase has evolved as a colloquial expression, often employed in conversational English to express emphasis or to draw attention.

Literal and Figurative Uses

Literal Use: In a straightforward sense, the expression is used when someone intends to convey information directly. For instance:

• “I’ll tell you what happened at the meeting.”

Figurative Use: Figuratively, it often conveys strong emotion, surprise, or a sense of seriousness. It sets the stage for the speaker to express an opinion, often implying agreement or disagreement. For example:

• “I’ll tell you what, this rain is really ruining our plans!”

Common Phrases or Idioms Featuring the Term

• “I’ll tell you what, I never expected that!”
• “I’ll tell you what I think: we need to change our strategy.”
• “I’ll tell you what, it’s going to be a long day.”

Contextual Usage & Example Sentences

1. Surprise or Emphasis: “I’ll tell you what, that was one of the best movies I’ve ever seen!”
2. Expressing Agreement or Support: “I’ll tell you what, I think you’re absolutely right about this.”
3. Setting Up a Statement: “I’ll tell you what we need to do—we have to start planning for next year.”
4. Indicating Discontent or Frustration: “I’ll tell you what, I can’t believe he said that!”
5. Revealing a Strong Opinion: “I’ll tell you what, I’m not a fan of that approach at all.”
6. Introducing a Suggestion: “I’ll tell you what, why don’t we go for a hike instead of staying indoors?”

Synonyms & Antonyms

Synonyms:

• Let me tell you
• Listen to this
• I’ll tell you something

Antonyms:

• I won’t tell you
• Let’s keep it to ourselves
• No need to share

This idiom is thus versatile in usage and can be adapted to various contexts, making it a valuable expression for conversational English.

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