Onew Condition is a very strange, mortal, super contagious sickness. You can assume you have this syndrome if you are weather making mistakes, talking or thinking about chicken, continuously tripping/falling, or making lame jokes and gestures that freeze the atmosphere.
This illness was developed by Lee Jinky, best known as Onew, leader of K-POP group SHINee, which provides this condition's name. Shawols, fans of SHINee, have been studying this particular illness over the years and haven't found the cure for this. However, SHINee members have found that you can ease this disease by singing "Molhaedo Onew Sangtae" (which means "Whatever he does, it's Onew condition") whenever the disease occurs.
Onew: "Why didn't the chicken cross the road?....Because I ate it!"
SHINee: *awkward silence*
SHINee: "♫ Molhaedo Onew Sangtae ♪" (Whatever he does, it's Onew condition.)