Someone who gambles a lot.
In my case, it's someone I know.
That idiot is one hell of a gambler.
Gambler is being a faggot again.
You rather mean Yumeko Jabami from kakegurui or Celestia Ludenberg from Danganronpa: Trigger Happy Havoc
person1: Omg, who was the red eyed gambler
person2: Yumeko Jabami
person3: Celestia Ludenberg