名詞
玩牌類遊戲嗰時（例如麻雀，啤牌），順序數落去，你之後嗰個玩家就係你嘅下家。麻雀嚟講，就指坐你右面嘅玩家 the next player; for mahjong, means the player sit on the right to you
阿媽教我打麻雀嗰時，唔係下家唔可以上牌。
阿妈教我打麻雀𠮶时，唔系下家唔可以上牌。
My mum said that when playing mahjong, except the next player, no one can to form a run of 3 sequential tiles from the same suit by picking up an unwanted tile.
反義詞
上家
Definitions (Wiktionary)
noun
next one in a sequence
noun, colloquial
next one in a sequence
找下家
找下家
zhǎo xià jiā to find a new lover for oneself (after a breakup, becoming unemployed)
Watch the opponent in front of you, lure that on your left, and intercept that on the right.
Cantonese
盯对家、诱上家、诛下家
盯對家、誘上家、誅下家
to watch the player opposite to you, lure the previous player, and intercept the next player
Cantonese
阿妈教我打麻雀𠮶时，唔系下家唔可以上牌。
阿媽教我打麻雀嗰時，唔係下家唔可以上牌。
My mum said that when playing mahjong, except the next player, no one can to form a run of 3 sequential tiles from the same suit by picking up an unwanted tile.