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!"

Some "soft" sounding words can feel pretty insulting too, like shush :)

Yeah, this is far from a hard rule, and more just a general trend that seems like it might bear out statistically, but I don't recall the source where I heard it from, so it's possible that it was not rigorous.

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

In some Slavic languages it means “poopoo”.

If you shorten the first vowel in "kaka" you get "kacka", which means "to shit" in Swedish. From the latin "cacare".

I has no idea about the latin word cacare... In Slovak "to poop" is kakat...

kakken in dutch xD

caca - shit - spanish

Same in french.

It's from a PIE root and found in one form or another in most European languages.

And interestingly it's often related to circle and bread in many languages:

Pi, Pie, Pide, Pita, Pizza, Piadina, Pirog (Russian for "pie"), Piscina (circular basin), Pipe.

Also, some Russian words for organs that have to do with piss (which are naturally circular) also start with "Pi".

"PIE" in this sense being an abbreviation for "Proto Indo-European".

Missed that, but so apt anyway!

Are you agreeing, disagreeing, or saying that more experimentation is needed?

You yell me in Sweden you can have kaka and fika?

Kaka is often a part of fika.

Less zag than Kiki with the same zig

kaka no good