How do you write "cho-kimochi-ii" in Japanese?

Question

I only know it means "I feel mega good" in Japanese. But how do you write it? I only know kimochi-ii is 気持ち良い. How about the "cho"? And what does "cho" means?
Please help out!
Thanks! :D

Answer 1

It's written 超気持ちいい.

超(chou) = super

Note: The usage of this "超..." is a kind of slang.
It's also written "チョー気持ちいい" or ”超～気持ちいい".

Answer 2

Chou is the Japanese equivalent of "hella" would be how I describe it.

EDIT:
Here you go...
超
...I think...
http://www.saiga-jp.com/cgi-bin/dic.cgi?m=view&f=0&sc=0&j=%E3%81%A1%E3%82%87%E3%81%86&e=&g=&s=&rt=0&k=&start=11&sid=1197462532_46346