let it all hang out

let on

to reveal or indicate, especially unintentionally or against one's wis…

let the cat out of the bag

To disclose a secret; to let a secret be known, often inadvertently.

let alone

Much less; to say nothing of; used after one negative clause to introd…

let down

To disappoint; to betray or fail somebody.

let sleeping dogs lie

To leave things as they are; especially, to avoid restarting or rekind…

let slip

To divulge a secret, as by accident or mistake.