長蟲

Simplified: 长虫

chángchong ㄔㄤˊ ˙ㄔㄨㄥ

- snake
  coll.

Character by character

zhǎngchóng ㄓㄤˇ ㄔㄨㄥˊ

- to become infested with bugs
  of food, books etc

Character by character

Sources