This was written by a late friend back in the 70s (now deceased) - it is based on the Fenian Legend of Finn and the two-headed giant.
Jim Carroll

O'REILLY AND THE BIG McNEIL      
Donneil Kennedy
tune: based on The Garden where the Praties Grow.

Well, the day I met O'Reilly it was thirty-two below,
The sparks were flying off me pick, I was up to me neck in snow.
His footsteps shook the basement slab, I saw the sky grow black
As he roared out, 'I'm your ganger now, so dig until you crack!'

He was bigger than a dumper truck, with legs like concrete piles,
His face was like a load of bricks, his teeth were six inch files;
His eyes they shone like danger lamps, his hands were tough as steel,
But a man as small as that was never a match for Big McNeil.

When the tea came round at dinner time, He grabbed a gallon tin.
I said 'you'd better drop that fast if you would save your skin,
You may be called O'Reilly, but I will to you reveal
That the cup you've got your hands on, it belongs to big McNeil.

Well, he laughed at me and carried on as if I hadn't spoke,
He said 'A man from Dublin town can always take a joke,'
But when he picked a shovel up, wee Jimmie gave a squeal.
'You'd better drop that teaspoon, it belongs to Big McNeil.'

Well, everything the ganger touched we said to leave alone,
Or else McNeil would grind him up and make plaster of his bones,
As last O'Reilly lost his head and said he'd make a meal
Out of any labourer in the squad, especially Big McNeil.

We said McNeil was home in bed, and told him where to go,
The boys all dropped their tools and went along to watch the show,
And when we got to Renfrew street wee Jimmy danced a reel
To see him thundering at the door, to fight the big McNeil.

When the ganger got inside he saw a monster on the bed,
A mound as big as a stanchion base with a barrel size of head,
He punched it and he thumped it and he hit about with zeal,
Till the missus cried - 'Don't hurt the child, or else I'll tell McNeil.'

He was bigger than a dumper truck, with legs like concrete piles,
His face was like a load of bricks, his teeth were six inch files,
His eyes they shone like danger lamps, his hands were tough as steel,
But a man as small as that was never a match for Big McNeil.