What is Sick-o?
1.
Sick-o originated at or was at least popularized in Oakville, Canada. It's variations include sick-ass. It has the same meaning as sick, only slightly better.
Yo man, that concert was sick-o!
Cheerleading is sick-o!
2.
when u get fuckin sick of everything, everyone and all that has to do with ur surroundings
im so fuckin sick-o everything!
See