Wiktionary
vb. To accidentally reveal a secret
Usage examples of "let something slip".
On his latest visit to Aludra she had almost let something slip —.
I was hoping she'd let something slip, but I didn't expect a full confes-sion and her accomplice's name in the bargain.
They will question you at length about your talk with Bottweill yesterday morning at breakfast, wanting to know all that he said about his meeting with Miss Dickey in his office Thursday evening, and under the pressure of inquisition you might inadvertently let something slip regarding what he told you about Santa Claus.
If the paidhi let something slip unchallenged through the council, he could end up losing a point two hundred years of his predecessors had battled to hold on to.
Parko, his fallen brother, must have let something slip before he perished, otherwise why would this hunter come here?
She tried keeping the conversation on Rand in the hope they might let something slip, yet she might as well have tried dressing bricks with her fingers.
On his latest visit to Aludra she had almost let something slip-he was certain of it-before coming to herself and hastily bundling him out of her wagon.
On his latest visit to Aludra she had almost let something slip -- he was certain of it -- before coming to herself and hastily bundling him out of her wagon.
She may let something slip, or she may feel expansive at the attention and grow generous.
Finally, in Karpov's catalogue, there was the tip that once-just once-Philby had let something slip, some-thing extremely interesting.
A hundred years from now or a thousand you could let something slip—.