孟婆来碗汤加点糖
[mèng pó lái wăn tāng jiā diăn táng]
This refers to the mythological story about Meng Po, a deity who gives the dead a bowl of soup to forget their past life. Here it means 'Ask Meng Po for a sweetened bowl of soup', possibly hinting at the desire to erase unpleasant memories but with a bit of a bittersweet taste.