look who's talking, look who’s talking (also you’re a fine one to talk, you can talk) spokenCRITICIZE used to tell someone they should not criticize someone else’s behaviour because their own behaviour is just as bad 亏你有脸说别人 ‘Peggy shouldn’t smoke so much.’ ‘Look who’s talking!’ “佩姬不应该抽那么多烟。” “你倒好意思说!”
look who’s talking, • "You need to get more exercise." "Look who's talking!"
→ look who’s talking, at talk1(16)