Is this the parody you mean?

You've all heard that song about Willie McBride
If I hear it once more it'll drive me wild
It's sung in the spingtime and sung in the fall
It's sung mostly by people whoi can't sing at all
You go to the pub of a saturday night
for a pint and a song and sure things is alright
until some drunken eejit sits down by your side
and says sing us that song about Willie McBride

You pretend you don't know it but that will not do
for now he's determined to sing it to you
He spills half your beer and starts off in a key
that was never intended for him, you or me
And ten minutes later you know it gets worse
'cos you now realise that he knows every verse
With his arm round your shoulder ('cos now he's your friend)
He's determined to sing the damn thing to the end

So you go to the jacks for a full half an hour
drink down four pints and a very large Powers
Go back to your seat hoping that he will tire
but he's now droning on about gas and barbed wire
And ten minutes later your there in a trance
whilst he's up to his arse in the green fields of France
The audience is silent, there isn't a peep
and the reason's quite simple - they're all fast asleep

Ah Willie McBride why the hell did you die?
All the trouble you'd have saved if you'd just stayed alive
and found a wee job and had something to do
then we'd not be tormented with songs about you
Ah but sure, not at all, I'm delighted you're dead
For the torture you've caused since the day that you died
ah shooting's too good for you, Willie McBride

Now, come on McBride what the hell is your game
with your photograph stuck in that mouldy old frame?
They're on sale down at Woolworths at ten bon a go
so what's all the fuss about, I'd like to know
And what's all this crap about barbed wire and smoke?
You shouldn't have joined if you can't take a joke
You ought to be barred from the sing-song and dance
You boring old fart won't you give us a chance?

Did they sing the song badly
Did they down the pints gladly
Did the drunks fall asleep as they lowered you down?
The the bar staff call "last pints" in chorus?
Did they all say "Thank Christ that's all over"