You know - 'choons' - bits of music, often with words, played or sung. It's an alternate spelling. Like 'choob of toothpaste'.
demensia - I use mild compression when I'm tracking acoustic guitar or vocals, and a bit more when tracking bass. I try to aim at about -3 for peaks, which means it's usually hitting somewhere between -12 and -6.
I used to think that if it clipped just a tiny bit, then I could get away with it, but I've come to trust Cool Edit's meter (well, actually I guess it's Cool Edit + my soundcard) completely. Once into the red, and I dump that take.