Nakamoto is just too many syllables!
I don't like the choices in this poll.
bip would be the best of those options offered because it is a single syllable (like "cent") and just 3 letters (like btc), so very parsimonious. Unfortunately, someone else says it might be a little bit of a problem because it is not unique (the BIP acronym, Bitcoin Improvement Protocol).
I still like the idea of something like
boin
or boink or bink.