Ko is very familiar. A large file is 12 737 Ko.
Ko is Coca Cola's symbol on the stock market. Ko is the name of many companies including Ko and Co (Ko and Company).
Imagine someone's initials being PS (Patricia Smith) or NB (Norman Brown) or CC (Carmen Constanza)or C/O:care of (Claude Otterburg). I believe our initials define us in a way...
2)the dyslexic way of saying OK.
(I have a dyslexic friend and this is her joke, its not meant to be hurtful or nasty in any way)
PersonA: Im going to knock u out
PersonB: ... *is knocked out*