#1 TOP DEFINITION
A subgroup classification within an idol group based on a shared trait. Common types: 'vocal line' (main and lead vocalists), 'rap line' (rappers), 'dance line' (main and lead dancers), '95 line' (members born in 1995), 'hyung line' (older members).
Example
โBTS's rap line (RM, Suga, J-Hope) all released solo mixtapes that showed off their individual artistry.โ
Heard in Lyrics
LIFESTYLE
Lisa
Lifestyle โ I earned every bit
Celine, Bvlgari, on my way
I walk the path I chose
Bona Bona
Burnin' and burning in love
Burn it up, you're my adrenaline
You're the climax of my life
Salty
Sometimes, I'm getting anxious with a ticket
Those people standing in line behind you
I cry out loud all day long thinking of you
Roar
I'll bear all the weight
Even the loneliness, yeah
Ooh, my hungry thirst was exposed
Realize
2 ContributorsCRAVITY - Realize (English Translation) LyricsThe loneliness of growing up without one place to lean
Uneasy future, faint dreams

Bump & Love
[Bridge]
I'll cross the last line left in front of you
Running breathless, don't wanna compromise, no more
Heard from an Idol
Watch how K-pop idols actually use this term
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