cut adrift
To abandon or set free. Likened to a boat having its mooring cut so that it drifts freely in the water. I think it's about time that we cut adrift the extremists of the party.
cut adrift
Separated or detached; freed. For example, The dissenters were cut adrift from the denomination. This expression alludes to cutting the rope of a floating vessel so that it drifts without direction or purpose. The figurative use of adrift dates from the late 1600s.