let loose

all bedlam breaks loose

The situation becomes chaotic or characterized by conflict or rage.

all hell breaks loose

The situation becomes chaotic or characterized by conflict or rage.

buy to let

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

cast loose

To unfasten, loosen, or set free.

cut loose

To loosen or set free someone or something.

cut one loose

To flatulate; to fart.

cut someone loose

To let someone go from something, such as a position, relationship, or obligation.

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.