A ship name between a Watermelon's Simp and a Fullsun of NCT, boygroup from SM Entertainment. They have been engaged when they're still trainee and rumored by NCTzen (it's fans name) that they're having a fight in summer 2017, but ended back together again.
Mark + Haechan (a.k.a Donghyuck) = Markhyuck
in other example:
JaeYong's first son + JohnTen's second son = Markhyuck
By Tamarah
Markhyuck
Markhyuck is a ship of two guys from the korean band NCT. It became the most popular ship in the fandom, it started even at their debut, Haechan said he and Mark had a fantasy like relationship.
Mark is a cute shy boy and Donghyuck (also named Haechan) a confident person and a tease. They make the perfect bottom - top couple. Mark admitted many times he was intimidated by Donghyuck and even scared. Donghyuck is always the first to try something.