I read something a while back about curse words more commonly using hard, visceral consonants because it's a lot more satisfying to say them in anger or frustration. Really hitting the end of the f-bomb or the beginning of "crap" feels better than saying something like "aw, jelly belly". Even something like "gosh" instead of "god" just doesn't feel as satisfying.

None of this is scientific (at least, not my attempts to describe it), and I don't have a good explanation for every swear or epithet, but I don't think it would be as satisfying to say "that's lubu!" instead of "that's caca!"

I can confirm that "kaka" taste good. It is the Swedish word for cake/cookie :)

Less zag than Kiki with the same zig

kaka no good