maknae's nickname of a korean group : Bangtan Sonyeondan.
Justin, because he's a fanboy of justin bieber
and saegull, because, it's was almost his stage's name
Justin, because he's a fanboy of justin bieber
and saegull, because, it's was almost his stage's name
by Taehyeonnie November 19, 2017
Get the justin saegullmug.