Alright boys, explain this to me like I'm retarded.

Who's Cirno?
What's with the blue /bant/ people?
Whats with these characters that represent countries?
What's with the love for Fairly odd parents?
What the flying fuck is Kara boga?
Where did this earth-chan thing come from?
Whats that pink nice bear thing?

I need an introduction to /bant/ booklet or some shit