Perhaps a bit of an outlier here but Con O Drisceoil 's 'Two row cake' does have its roots in his 40th birthday party.
Also, while not actually set in Ireland, his 'Amhran na bhFia', the Stag party as it were, could be up for consideration as it follows the usual pattern of drunkenness and mayhem typical of the genre.
Sending this from my phone, supplying the words is beyond me this way, I am sure they will be easily located somewhere.
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sj