hehehe the translation of kek -

Basically in world of warcraft you can't talk to the other faction, so if a night elf tried talking to a troll it would make no sense at all.

If said troll laughed ie types 'lol' in the chat window all the night elf would see is 'kek'

I'm assuming you don't play World of warcraft and took rapid shot from D&D, in world of warcraft the class Hunters, very much like rangers also have a rapid shot :D and a multishot too heheh the two together are lethal >:D