Ultra Instinct Sicko Mode is the highest level of sicko mode that can currently be achieved. It is where a person ascends to the highest level of existence. This results in the sudden absolute peak of physical and intellectual prowess where a person can act purely on instinct. As such, this mode is another way of saying that they are immortal.
"Holy fucking shit!! Daniel... he's going Ultra Instinct Sicko Mode! There's no way we can possibly defeat him now!!"
Sicko mode is a level of both intelligence and physical being in such one can achieve anything. This could be as simple as walking or as complex as explaining tier memes
Often used in comments about a person or thing, “Brian go Sicko Mode”
The feeling you get after you recover from being sick, but you still feel like shit, yet show no symptoms of the disease.
Person 1: Hey man, you down to have a kickback at your place tonight?
Person 2: Not tonight no, I just came off some crazy fever, and am feeling a bit sickover.