역대급
Meanings
Noun
1. the largest scale or the highest level in history which has never been experienced before (neologism)
Pronunciation
yeokdaegeup
Examples1
오늘 친구들이랑 합심해서 한 명 속이기로 했는데 역대급 몰래카메라가 될 것 같아.
I decided to team up with my friends to trick someone today, and I think it's going to be a legendary hidden camera prank.