Long story short he got lucky in the 90s with an inheritance and a publisher and can now devote his life to researching and publishing English slang. It's also interesting to me because it's a project that started as a book but has now migrated successfully to the Internet, both for publishing the dictionary and for doing research for updates to the dictionary.
It's interesting reading them as a native speaker, as there's so few that I could even begin to guess what they mean.
[0]: https://www.telelib.com/authors/O/OrwellGeorge/prose/Downand...
>F
>[SE fail, also used as a mark for inadequate work, or fuck!]
>(juv.) response to someone else’s bad news.
F doesn't come from fail but from Call of Duty
Old is new is old. Kids hate nothing more than grandma throwing gang signs they learned from their elders not knowing the elder in question learned it from grandma first.
People probably get phd in the second order differential of slang rate of change.