let something slip

let (something) slip

To accidentally or inadvertently reveal some secret or important piece of information. I can't believe your sister let news of our engagement slip in front of your parents! The agent, under the influence of a powerful truth serum, let slip the names of other operatives working covertly in the area.
See also: let, slip
Farlex Dictionary of Idioms.

let something slip

1 reveal something inadvertently in the course of a conversation. 2 fail to take advantage of an opportunity.
See also: let, slip, something
Farlex Partner Idioms Dictionary
See also:
  • let (something) slip
  • let it slip
  • let slip
  • let slip something
  • let fall something
  • let (something) fall
  • a slip of the tongue
  • let (something) drop
  • let drop
  • let it
References in periodicals archive
With all these responsibilities, the average farmer has to let something slip. Often, it is not work or expertise in the field, it is financial.
You could be seeing a new side to someone's personality, as they let something slip in conversation.
Libra Sept 23 to Oct 23 You could be seeing a new side to someone's personality as they let something slip in conversation.
These people don't fool around - if I let something slip I'd be run through with a lightsaber Star Wars' Mark Hamill says Disney insists on keeping storylines secret What's the requirement of my job?
Slade was his usual guarded and polite self when facing enquiry, but he did let something slip, talk of the jury being out on his Cardiff future led him to state: "When you walk into this job you are always under pressure.
Maybe you didn't take that moment to think before posting or maybe you unintentionally let something slip out, resulting in unintended consequences.
of grease The machines thundering blue, let something slip A tranquil
However, we also need to ask ourselves if we have let something slip by on the maintenance side of the equation.
A friend may let something slip to you today, and you can both have a really good chuckle about this.
However, someone in the family could surprise you with a revelation or are you going to let something slip which has been kept under wraps?
"Michael Kennedy said he spoke just to one single journalist and he's let something slip. No, it's not a situation where Shay said he needed to say it (the statement)," he said.
"I would expect them to let something slip, but he never has."
Mercury's encouraging you to let something slip or slide.
So, Labour Party activists were hoping election supremo Alan Milburn might let something slip when he spoke at a training day in Gateshead.
"There's not any great disappointment, simply because of the obvious: We have no control over the Miami-Nebraska game, so it wasn't like we let something slip away or did something wrong," UO defensive coordinator Nick Aliotti said.