fàn làn chéng zāi
lit. to flood (idiom)
fig. rampant; in plague proportions
泛
fàn
(bound form) general
滥
làn
overflowing
成
chéng
short name for Chengdu 成都[Cheng2 du1]
灾
zāi
old variant of 災|灾[zai1]