Dictionary of the Vulgar Tongue
A dictionary of the slang of
the British underworld produced in 1811.
This was based on an earlier book by
Francis Grose, which I have not found on-line.
Francis Grose in turn may have used the
1736 dictionary of Theiving Slang
which I have transcribed myself.
Entries in the online edition of
the 1811 dictionary have links back to
the earlier work by Nathan Bailey in many cases.
You might also be interested in
Antiquities of England and Wales which
Captain Francis Grose also wrote.
The title page of The Dictionary of the Vulgar Tongue
reads as follows:
A Dictionary of Buckish Slang, University Wit
Compiled originally by Captain Grose.
And now considerably altered and enlarged,
The modern  changes and improvements,
by a member of the Whip Club.
Hell-Fire Dick, and James Gordon, Esqrs. of Cambridge;
Soames, Esq. of the Hon. Society of Newman's Hotel.
London: Printed for C. Chappel, Pall-Mall;
Sold by J. Johnston, Cheapside; Goddard,
Pall-Mall, and all other booksellers.
The title, Dictionary of the Vulgar Tongue, appears
above the start of the definitions.
The proper short title of this book is
or Dictionary For Jesters.
I should note that
also has a text transcription of this dictionary.
I have compared their edition in some detail to the
printed book, and when I am done I will send them the
differences so that they may benefit. Until then,
note that most other online editions are copies of
the Project Gutenberg one and contain the same errors.
I have not transcribed the Preface.
If you plan on mirroring this text, or want a copy of the
XML file, let me know; please do not try to use wget
or work offline or other tools, because they hammer
the server and also because there are links to generated
pages, and you can download hundreds of gigabytes if
you are not very very careful!