Oops sorry - sent it twice

Please disregard my earlier message -- I got it all wrong, not being able to find again the reference I wanted. Now I have found it and it comes in a passage describing a particular homosexual and his "practice" in David Seabrook's recent book "All the Devils Are Here": "The standard sequence of events seems to have been[when visited by a young man] a hot bath, a meal, and later on a map of Ireland if the mood was right". What exactly in this context is "a map of Ireland"?

I couldn't find the meaning using Google. Maybe it means the two men got together for some Dublin' up.

map of England (occasionally Ireland). A stain on bed-linen: Forces', esp. RAF: since ca. 1918. The latter occurs in T.E. lawrence's _The Mint_, published in 1955 but dealing with 1992. Ex the outline.
From A Dictionary of Slang and Unconventional English by Eric Partridge & Paul Beale

OK, getting into some dodgy ground here. No doubt the previous explanation is correct. But if this is a sexual connotation, then it reminds me of the term 'Map of Tassie'. Tassie being short for Tasmania. Tasmania is a sort of triangle, and the term 'map of tassie' is a slang term meaning a woman's pubic hair (due to the supposedly similar shape). So I don't know if there's some sort of connection there or not.

Sorry guys, accidently pushed the button twice. Just realised that talking about the 'Map of Tassie' is kinda funny coming from the Lotg. (Must be bored tonight - sorry)