an Irish execution ballad written in the Newgate cant.
[...]
Donagh MacDonagh gives the following sleeve note 'One of a group of Execution Songs written in Newgate Cant or Slang Style in the 1780s, others being The Kilmainham Minuet, Luke Caffrey's Ghost and Larry's Ghost in which, as promised in the seventh stanza of the present ballad, Larry comes "in a sheet to sweet Molly"!' The Newgate Cant or Slang Style is not unique to Dublin and all the cant and slang is to be found in Partridge's A Dictionary of Slang and Unconventional English (1937). Nubbing cheat or Nubbin chit is cant for the gallows, while Darkmans is cant for night.
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Considerable amusement was caused by the favourite Dublin streetsingers L-n-h-n and M-ll-g-n who sang The Night before Larry was stretched in their usual mirth-provoking fashion.
James Joyce. Ulysses
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The Night Before Larry was Stretched (first stanza)