let it slip

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let it slip

To accidentally or inadvertently reveal a given secret or important piece of information. We had done so well keeping our engagement a secret. I can't believe I let it slip in the middle of dinner last night!
See also: let, slip
References in classic literature ?
Well, it might have been better not," said I, "but since I have let it slip, I may as well continue.
This last to the dead Wieroo as he stooped and dragged the corpse to the central shaft, where he raised it to the aperture and let it slip into the tube.
Always let it slip that your program is one of the chief's top priorities.
In the (copyrighted) words of rapper Eminem, Lawrence Lessig had one shot, one opportunity, one moment--and, Lessig admits, he let it slip.
Say, "Grandpa let it slip that you two had previous marriages.
As her sons threw snowballs at each other nearby, Orantes gathered handfuls of snow and let it slip softly through her fingers.