booseoksoon 

bss (부석순), an acronym for booseoksoon, is a specialized sub-unit stemming from SEVENTEEN, in which was first showcased at caratland 2018 but officially debuted on march 21, 2018 with their single 'just do it' (거침없이). it consists of the members seungkwan, dk (lee seokmin), the leader, and hoshi (kwon soonyoung) which are notably recognized for their hilarity and mood-making within the full group.

person 1: booseoksoon? what is that

person 2: omg u don't know bss? it's a sub-unit with seungkwan hoshi and dk! i really hope booseoksoon have a comeback some day

booseoksoon by booricano November 30, 2020

booseoksoon 

Booseoksoon , consisting of Boo Seungkwan , Lee Seokmin and Kwon Soonyoung , is a sub unit of the boy band group seventeen. Written as 부석순 in Korean. Also written as BSS. Also written as the death of all carats.

OMG!!! Just do it is Booseoksoon!!!

booseoksoon by Darsh_hanhan June 8, 2018