kee siao

adjective1

1. •
   (Singapore, informal) Mad, crazy.

   • "He's a kee siao guy," Ridhuan said. https://books.google.com.sg/books?id=sGZKAgAAQBAJ&pg=PT535&dq=kee+siao&hl=en&sa=X&ved=0ahUKEwjGtIui8PbLAhWEGo4KHVOQA4UQ6AEIGzAA#v=onepage&q=kee%2520siao&f=false — 2013