let the buyer beware

buy to let

To purchase a property as in investment, and to let it out for rental instead of living in it

don't let the door hit you on the way out

Used as a command to leave in haste, or to indicate that one is glad, or at least unmoved, to see the addressed person leaving.

let a sleeping dog lie

Alternative form of let sleeping dogs lie.

let bygones be bygones

To disregard or ignore a past difficulty in a relationship or an offence (when dealing with another individual).

let crazy stick its dick in you

To have sex with a male deemed insane.

let down

To disappoint; to betray or fail somebody.

let drive

To aim a blow; to strike with force; to attack; to shoot (an arrow or firearm).

let fly

To strike or release a projectile with great force.