Chinese

		to flood; to inundate	finish; complete; accomplish finish; complete; accomplish; become; turn into; win; succeed; one tenth	disaster; calamity
trad. (泛濫成災/氾濫成災)		泛濫/氾濫	成	災
simp. (泛滥成灾)		泛滥	成	灾

Idiom

泛濫成災

1. to flood and cause disaster
2. to run rampant; to run wild; to run amok