Deceived people. In Cantonese, the water fish is often used as a metaphor for those who are easily deceived, there is "cut water fish", said the water fish group, is an easily deceived group, which is more inclined to the "tour group", because it is easy to be forced by unscrupulous tour guides or Lure consumption, and even more to buy fake goods are still in the dark, the Cantonese saying: "pick up the grass when the Department of Treasure".