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Jyutping zi6 mo1
Pinyin zì mō

Definitions (Wiktionary)
  1. verb, slang
    to masturbate; to touch oneself
  2. verb
    to self-draw the winning tile
Definitions (Kaifangcidian)
  1. 贏牌 – 赢牌

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Jyutping zi6 mo2
Pinyin zì mō

Definitions (粵典–words.hk)
  1. x

自摸 [--]

Jyutping
Pinyin zì mō

Definitions (CC-CEDICT)
  1. (mahjong) to self-draw the winning tile
  2. (slang) to play with oneself; to masturbate
Examples (粵典–words.hk)
  1. Cantonese
    叫只绝章卡窿二筒,咁都俾我自摸到,真系好运呀。
    叫隻絕章卡窿二筒,咁都俾我自摸到,真係好運呀。
    • Was calling the last tile of twin circle in the middle of a Chow, and I can self-drawn it fresh from the wall, how lucky I'm.