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Definition

In secret or nearly so, on a need-to-know basis.

Secretly sleeping with someone other than one's partner.

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In Context

  • "I'll tell you, but keep it on the down-low."
  • "And keep it on the down low Nobody has to know"
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See Also

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Related Idioms

I

I'm not telling you

Used to express that someone doesn't need to know something, typically…

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on hold

Delayed; postponed; suspended.

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on the bubble

Uncertain of success.

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on fire

Overwhelmed with emotion; beside oneself.

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on end

without interruption, without stopping, continuously

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on the game

Working as a prostitute.
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