Ho-chi-ko. All given about the same stress (course that was in Japan so it's possible, but quite unlikely, that the intonation is a little different. Nonetheless I'm sure the sounds are the same.). It means something like 'shitface' in Spanish apparently? Not entirely sure on that though.
About the 'screamy' - I agree. That's why I liked them better in concert. I don't particularly go in for the raspy-voice bands (I don't know how to describe that but you know, like everyone they play on the radio?) usually, so I was a bit disappointed hearing the CD after hearing them live, where they sounded less over-produced and more ...well, natural? But I wouldn't hold my tastes to hold true for everyone - I'm not a very big metal / super hardcore fan.