pkoi is a
French Internet Acronym or rather a shorthand standing for
pourquoi, which means 'why?' in English.
usage:
In 1995 at a LARP in Montreal:
Lord Blizzard aperçoit un goblin dans son territoire.
Lord Blizzard (my brother who was 10 at the time) notices a goblin in his territory.
Lord_Blizzard fesse le goblin avec son épée à deux mains: deux! deux! deux!
Lord_Blizzard hits the goblin with his two-handed sword: two! two! two!
Goblin: pkoi tu m'as fait mal? pkoi?
Why did you hurt me? Why?
Lord_Blizzard: Tagueule mon estie! deux! deux! deux!
Shuddup you bastard! two! two! two!