對賭 [对赌]

Jyutping deoi3 dou2
Pinyin duì dǔ

Definitions (粵典–words.hk)
  1. 動詞
    一個​人同​另​一個​人​嘅​賭​博​，​冇​莊家
    one on one wagering/betting/gambling; no bookmaker (or other third party) involved

對賭 [对赌]

Jyutping
Pinyin duì dǔ

Definitions (CC-CEDICT)
  1. to place a bet (with sb)
  2. to take a risk (with one's time and effort etc, e.g. on a business venture)