粵典 (words.hk)香港詞
歇後語，後句為「自己顧自己」；源於潮州音樂中#嗩吶 嘅吹奏聲聽落好似用廣東話講「自己顧自己」 (everyone for themselves; In Chiu Chow music, the music instrument suona sounds like "gi6 gi1 gu3 gi6 gi1", which sounds like "zi6 gei2 gu3 zi6 gei2", which means 'everyone for themselves' in Cantonese; literally: Chiu Chow music)
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