Originally Posted by this is fun
Why? because of this 'hihi''?
Well, we use it too
Wow! Is it some new Euro craze, or is it a text-message thing, or....
Maybe I'll just keep randomly adding it to the end of sentences, in hope that someone will eventually take pity on me and explain hihihi.
Edit: According to Urban Dictionary, "A greeting typical in online games, message boards, instant messages, etc."