ci1 sin3黐線黐线

Jyutpingci1 sin3
Yalechī sin
動詞Very common

Definition

Insane or crazy, like tangled wires; originally, crossed telephone lines.

  1. crazy; insane; out of one's mind
  2. datedcrossed lines; short-circuited telephone wires
colloquialpeopleemotion

How it's used

Originally describing a telephone line fault where signals crossed, this term evolved into a common, informal way to call someone irrational or erratic. It carries a strong sense of disbelief or frustration and is frequently used in casual arguments or when reacting to someone's bizarre behavior. While it is very common, it remains a blunt insult that should be avoided in professional or formal settings.

Examples

Why are you losing your temper for no reason? Are you crazy?
He actually wants to go hiking in this weather, he's totally insane.

Common phrases

Common mistake

Avoid using this to describe someone with a genuine clinical mental health condition, as it is strictly a colloquial insult for irrational behavior or poor decision making. It is not a medical term and can be offensive if directed at someone suffering from actual illness.

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