Even though i have watched IY since its aired, i still dont know how to pronounce "Invincible youth" in korean. So i had to look through Wiki here : http://en.wikipedia.org/wiki/Invincible_Youth.
Invincible Youth = cheong-chun-bul-pae, ok, but what about the catch phrase?
Funny things is i scroll down and see this:
Goo Ha-ra Nickname : Haragoo, Goosain Bolt, Stealthy Hara. i was laughing so hard there, how did i missed that;Which episode Goo Hara was nickamed Goosain Bolt????... Oh... maybe the episode where she broke a jumping record??