to break, snap in two; fracture / break off, fall off / to break out, appear, occur, begin / to break away, leave, move away, to be separated / to get disconnected

(intransitive, idiomatic) Often used in the imperative mood to indicate resignation and resentment about a situation that is already deteriorating to finally terminate itself; to be allowed to dissolve without any attempt to improve it; let the chips fall where they may.