Next time you don't have a MacBook or your binary LED watch around to show your 'eleet' factor, pick up a calculator and make some calculator words using some calculator spelling or beghilos as it is called. What's that? It's a technique of spelling words by reading characters upside-down from calculators. Here's more information from Wikipedia.

Here are a few to get you started.

BEE = 388

GOOGLE = 379009

LOOSE = 35007

There's more at the Wikipedia link above.