Anyone know what does roofhit mean?

They say that Rose’s APT has risen to No.3 on Melon top 100 with its first roofhit

Quote from bartkun

basically it means that in recent hours it's most listened song on Melon and suggests it's on trajectory of takin #1 on the list

Wow, so good to know, thank u

U all are right

She just climbs to no.2 now

This is insane, just 11 hours after a Friday afternoon release