idiom > (literally) splashing the head with cold water--a sudden and harsh disappointment or discouragement
Contents
Cold toppings
  Explanation: Cold water poured down from the back. Analogy suffered sudden unexpected shock or stimulate, thought startled or you hope to disillusionment. With the "cold water back."
  Source: Qing Ding, "added Jin Ping Mei" back forty: "suddenly heard that his wife came, good Yisi - Trick Bang, cold toppings."
  Examples: He looked like poured ~, can not help but shivers, slumped against the back of the chair. ★ Yao Xueyin "Rereading," Volume I Chapter XXII
English Expression
  1. n.:  (literally) splashing the head with cold water--a sudden and harsh disappointment or discouragement