冇尾飛砣
simp冇尾飞砣also written冇尾飛鉈mou5 mei5 fei1 to4mǎo wěi fēi tuó
English
- someone or something that comes and goes, and does not come back
- one who is unreliable or does not stick with promises
- somebody who often moves about without a trace; literally: tailless flying weight
粵語 — Cantonese
- 成日唔知去咗邊嘅人（量詞：個／隻）
Examples
你個冇尾飛砣，成日唔見咗人。
Why did you disappear? We don't know where you have been for the whole day.
Sources: cc-canto, rime-cantonese, words.hk