Seven-segment displays spellings

Calculator spelling used to be an intriguing practice on old-fashion mobile devices such as calculator. Wikipedia defines it as

"a technique of spelling words by reading characters upside-down from calculators equipped with certain kinds of seven-segment displays (...) The 'original' attributed example of calculator spelling, is 5318008, which when turned over spells the "BOOBIES". ."

The code is very basic: Letter: B E G g h I L O S Z Digit: 8 3 9 6 4 1 7 0 5 2

People who want to use it can have a glance at this dictionnary of 250 calculator-spellable English words.

Why do I blog this? that used to be a practice linked to seven-segment displays, gone with new technologies; curious anyway (although very childish in its usage).