Danny, you say below that you like using Mikes, micro etc.
So what will be your slang for when 3 bits=$300,000 (your own example)? Will you just continue on to nano/pico...
Why not?
Actually, a nano-bit doesn't sound half bad, perhaps we should just jump right to that?
Sure, except that at the moment the smallest division of a bitcoin supported in the protocol is 10 nano-bitcoins.
As for slang names, how about "nans", or "nanoes", or "en-bees", or "ens"?
Also, I can tell that your name is not Mike!
Nope. It's Danny.

Those sound terrible.
You have to consider that professionals will be using this terminology. CEOs of companies are not going to be going around and saying "Our new product should cost 30 en-bees".