粵典 (words.hk)Hong KongWord
向人打暗號畀提示 (give hint to somebody with codes or signs that not regonizable normally, literally to send a message throught telegram.)
動詞Examples
上次考試全班冇人合到格,所以今次老師向學生打哂電報,提示佢哋要温邊題。
No one passed the last exam, so this time the teacher provided hints to help students prepare for revision.