The Brief: When a K-pop song reaches No. 1 across all major music charts at the same time, it's called an "all-kill."

DEEP DIVE
“All-kill” is a K-pop term used when a song reaches No. 1 across all major music charts in real time simultaneously. Figuratively speaking, the K-pop group “killed” meaning to rank higher than, all of their competition.
"BOY" by TREASURE 06:18 KST
#1 MelOn (=)
#1 Genie (=)
#1 Bugs (=)
#1 FLO (=)
#1 VIBE (=)1th Perfect All-Kill
— lanna RS1 (@jenniduk) August 7, 2020