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Jyutping baai1 wun2 zi2
Pinyin bāi wàn zi

Definitions (CC-CEDICT)
  1. arm wrestling
Definitions (Wiktionary)
  1. verb, colloquial, verb-object
    to arm-wrestle
    (syn.) 拗手勁, 比腕力, 拗手交, 握手勁兒, 拗膀勁, 扳手勁, 比手勁, 扳腕子, 遏手把, 扳把, 勾手骨, 扳手把, 扳手腕兒, 掰腕子, 拗手瓜, 較手勁, 握手腕兒, 拗手臂瓜, 掰手腕兒, 扳手, 過橋
Definitions (兩岸三地生活差異詞語彙編—Two Shores Three Places)
  1. 體育規則和競賽:臺
    比腕力
  2. 體育規則和競賽:陸
    掰腕子