筆桿子 [笔杆－]

Jyutping bat1 gon1 zi2
Pinyin bǐ gǎn zi

Definitions (CC-CEDICT)
  1. pen
  2. an effective writer
Definitions (Wiktionary)
  1. noun
    shaft of a pen or writing bush; penholder
  2. noun, figuratively
    pen; ability to write
  3. noun, figuratively
    effective writer