You are most likely familiar with numbers being used to implicate letters, phrases or even symbols. In SMS (txting) shortcuts, for instance, 2 can also be used for “to”, 4 can mean “for” and the 8 spells “eat” in gr8, meaning great. This is called SMSish or textese or simply SMS language.
When numbers instead of letters are used to spell a whole word it is called leet – which, in leet, is written as 1337. Another example is n00b, a term for newbie. Andsoforth
