Coming late to C&F I may be opening a topic that has already been discussed. I am referring to tune name parodies. I am on the lookout for new ones.
Some that come to mind are:
the “Pains of Boils”
Seamus Ennis’ “The Arse and Douche of Piping”
There is that old favorite “The Road to Piss and Vomit”.
Newer ones are:
“My Darlings a sheep”.
Johnny Dorn’s “Hamburger Paddy”.
“I kissed her in the Derry Air” ( Derriere)
Pat
The Prattie in the Gander’s hole comes to mind. 
Pappy O’Rigami
More Buckin’ Orans
Here’s a few common ones that come to mind.
Here in Manchester many tunes go by parody names.
Merely Quake The Wife’s Kisser
Jug of slugs
Horses Balls
I’ve written some tunes with hopefully amusing titles, the best of which is
The Hag Behind the Poll Tax.
TTFN
John S
In my neck of the woods, we refer to it as Planxty Powered Fannies.
Here are a few more plus what we have so far:
Planxty Power’s Fanny
Merely Quake The Wife’s Kisser
Jug of slugs
The Stare of Monster
Merrily Kicked the Quaker
The Maid’s Behind Bar None
Planxty Power’s Fanny
Start of the Countdown
Bullet the Wagon
Whiskers For Breakfast
Intemperance Reel
She Begs For More
The Prattie in the Gander’s hole
Pains of Boils"
The Arse and Douche of Piping
The Road to Piss and Vomit
My Darlings a sheep
Hamburger Paddy
Varnish My Foreskin
The Silly Wanker
The Horny Pilgram
Jackson’s Morning Flush
Paddy O’Furniture
What about,
Lord Inch it in.
I Buried My Lad.
Trabolgan Reel.
The Sailors Vomit
But on a different way of changing names,
The Trans Roscommon Airways…The Planes Of Boyle
The Jaundiced Itinerent…The Yellow Tinker
The Galway Library…The Bucks of Oranmore
My Grannys Fanny…The Old Bush.
The Bitch with the Bread…The Hag with the Money
Tommy
And there’s:
Jenny Cocking Pickles
What Would You Say To A Cup Of Tea Father?
PD.
Feck Off Tea…
Jenny Throwing Bottles.
Ah, the crack we had the day we died for Ireland.
JD
Up John!
Yes… I’m glad we’re better now 
PD.
There’s the reel that Sean Dempsey played for Hitler in 1937 - “_Reich_ish Paddy”.
Here’s a couple of reels that I’ve fished out (music not included so that my reputation dosen’t sink any lower):
The Rodden Reel (short "o’)
The Zebco Reel
dave boling
my fav: If you’re drunk, is it sex that you want?
The Earl’s Stool
Swinging on a Gibbet
How about “The Farting Ass” ?
rg