Bao Toh(Singlish). Original Meaning: Bun knife (Hokkien)
Alternate Meaning: To tattle. The phrase also refers to sabotage, to betray secrets or “tell” on others. The long bun knife is possibly used to describe the backstabbing.
“You are dating his girlfriend and he finds it out?”
“Yes”
“He confirm will bao toh you sia”