火fo2牛ngau4

English

1. (noun) an AC adaptor; an electric transformer; an electrical ballast
2. transformer ----
3. derogatory term for a firefighter; literally: fire bull
4. charger or AC adapter in general

粵語 — Cantonese

1. 變壓器
2. 即係消防員，帶有輕蔑嘅成份
3. 泛指電子產品嘅充電器或者電源

Examples

• 部電腦冇電，又唔記得帶火牛。

  My computer is out of battery, and I forgot to bring the charger.