'SK' is and abbreviation for 'Sick cunt' or 'Sick kunt'.

A slang abbreviation used by people mainly in Australia and New Zealand.

An abreviation, short for the SKS. A semiautomatic rifle that is easy to convert to fully-automatic. A favorite of old school gangstas as it was invented around the same time as the AK-47

Or just sk, abbreviation of "it's ok" or "that's ok".

s'k means its ok

Scrap Killa

SK - Short hand for 'Soggy Knicks'. A Word used to describe the result of female arousal by someone whom they find attractive.

known to be as the stOOp kidSz
famous leaders as
Snuffa,SodAman,sNOOksz,DiN0B,& Pacman

has many members, but few and exclusive are choosen

mainly seen around the BRONX
they chill, do graffiti on stoops.