What is the meaning of dark flowers in Hong Kong dramas?

Dark flower is a Chinese word, which means the hidden pattern of flowers in the dark.

Word: dark flowers

Pinyin: àn huā

Explanation:

1. Flowers in the night.

2. Dim snuff.

3. Hidden but not obvious patterns. Fuzzy patterns, such as concave and convex on porcelain, light and shade on textiles.

4. Very dark flowers.

5. Private, undisclosed and illegal rewards.

Extended data:

Dark color: adjective. It's private, underground, invisible, not public, not public. In "Dark War", Andy Lau played the police as a cover, and his handling of Li Zixiong was a serious "dark war". The "darkness" in the dark flower is a black hole hidden in the old trick, which has underground disorder.

Flower: a noun. A sum of money, a sum of money paid for a special purpose Dark flowers are also relative to bright flowers, that is, the so-called public reward, while dark flowers are labeled as gangsters and only circulated among insiders (Hong Kong police also provide "dark flowers" to solve crimes, such as the famous Three Wolves mystery. )

Reference materials? Baidu encyclopedia-dark flower