Markhyuck

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