This is the combined pairing name for the Super Junior members "Eunhyuk" and "Donghae"
A lot of people consider them one of the least cheating couple in super junior- very loyal to each other.
Also considered monkey/fish love.
Fan 1: Have you seen the super junior episode Dangerous Love yet?
Fan 2: No, why?!
Fan 1: There are amazing Eunhae moments there!