粵典 (words.hk)香港短語
指親友義務擔任#司機，源於#俄羅斯 作曲家「彼得·伊里奇·柴可夫斯基」最後兩隻字諧音「司機」 (driver or chauffeur, usually referring to a designated driver or someone who drives for family and friends; it originates from a pun of the name Tchaikovsky, as the last two syllables are a homophone of "driver" in Cantonese)
名詞用例
今晚成班朋友去飲嘢，不過我做柴可夫司機，所以唔飲得酒。
gam1 maan5 seng4 baan1 pang4 jau5 heoi3 jam2 je5, bat1 gwo3 ngo5 zou6 caai4 ho2 fu1 si1 gei1, so2 ji5 m4 jam2 dak1 zau2.
Tonight our group of friends are having a night out, but I'm the designated driver so I cannot drink alcohol.