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A study of new slang terms entering English finds that technology is driving and perpetuating them.For instance, "404" - the error message given when a browser cannot find a webpage - has come to mean "clueless".
Slang lexicographer Jonathon Green says that some such terms and abbreviations come about because of the limited speed and space afforded by text messaging.
Of the more unlikely slang sources identified in the Post Office research is the Oyster system, a card-based payment scheme on the London Underground. The card readers show the number 35 if the card has run out of credit. As a result, "Code 35" has come to mean penniless.
Quite 'book', really. ;)
A study conducted by the telecommunications arm of the Post Office has searched out the terms that are not yet in wide use but may be soon.
(Emphasis mine)
The emergence of new words is a fascinating subject, and the internet provides more (interoperable) data on words than has ever been available. Let's hope a few more in-depth studies become available :)