Used to teach loads of Thai students, who all go by a nickname. Thai people have a long grand formal name (sometimes given by a Buddhist monk), and an unrelated nickname for everyday use that their parents pick.
Lots of them are just the Thai names of different animals, birds or plants, but loads of English ones mixed in too. Also lots of people named Bum (dimples) or Poo (crab) who hurriedly have to come up with a new name for English.
Ones I have met:
Golf (“just because my dad likes golf”)
Best (“does that mean something different in Thai?” “No, it’s Best as in English Best”)
Pinky
Pancake
Game
Joke