I saw it about twentyfive years ago in a book of street songs compiled (and probably much edited) by Dominic Behan. Iseem to remember that it was "roll" in there. I've always taken it to mean the sexual act, as they call it in Solihull -- as in "a roll in the hay". I may be wrong ...

Some more verses from DB:
In days of old when men were bold and fancied May Oblong,
Or pretty Beckie Carter, or Maggie Mary Wong,
One woman put them all to shame, just one was worthy of the name,
And the name of the same was Dicey Riley.

But time went catching up with her, like every pretty whore,
It's after you along the street before you're out the door.
But out of all that great brigade, just one was worthy of her trade,
And the name of that jade was Dicey Riley

Rather a sad story ... sounds as if it's written with a real woman in mind. It always reminds me of "nobody loves fairy when she's forty"!

Steve