送瘟神

sòngwēnshén ㄙㄨㄥˋ ㄨㄣ ㄕㄣˊ

    • to get rid of a disaster or a harmful person or thing

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
to send off the plague god
Meaning
To get rid of a disaster or a harmful person or thing. Used approvingly, with relief.

Sources