[mathattack]

Linguistics is a fascinating field. I suspect there is a lot behind which sounds are culturally biased, and which are universal.

I recall a study that said "spit" is the least corrupted word across languages. (Because the sound is similar to the activity)

[eCa]

Which leads to: http://en.wikipedia.org/wiki/Onomatopoeia

and more specifically (though spit is missing): http://en.wikipedia.org/wiki/Cross-linguistic_onomatopoeias