come full circle

as they come

As it is possible to be.

blow to kingdom come

To totally destroy (something); to annihilate or wipe out (something).

Christmas come early

Something very delightful or fortunate that is happening or has happened, especially earlier than expected.

circle back

To return to a previous location or state; to come back to.

circle the drain

To be in a rapid decline or in a state of downfall, especially as leading to an inevitable utter failure or destruction.

circle the wagons

To prepare to defend against an attack or criticism.

come a cropper

To suffer some accident or misfortune; to fail.

come a long way

To make significant progress.