一時半會 [－时－会]

Jyutping jat1 si4 bun3 wui6
Pinyin yī shí bàn huì

Definitions (CC-CEDICT)
  1. a short time
  2. a little while
Definitions (Wiktionary)
  1. noun, colloquial, usually, with-negation
    a short while; brief period of time