【喻】事情弄糟；失敗（甩：脫落）。一唔垂意就會甩底。（一不小心就會弄糟。） 丟臉。當住咁多人面，你話是不是甩底啊！（當著那麼多人，你說丟臉不丟臉！） 爽約；不守承諾。七點鐘喺戲院門口見，唔見唔散，咪甩底啊。（七點鐘在戲院門口見，不見不散，別失約啊。）

(phrasal verb) to stand someone up; not turning up for a date or appointment; to break a promise; to fail to so something as promised; to have a secret exposed; to mess up something; to have the base (usually of a container) falling off.