Lyrics:

Now Clancy was a peaceful man
If you know what I mean,
The cops picked up the pieces
After Clancy left the scene,
He never looked for trouble
That's a fact you can assume,
But never-the-less when trouble would press.
Clancy lowered the boom!

Chorus:
Oh, that Clancy, Oh that Clancy
Whenever they got his Irish up,
Clancy lowered the boom!

O'Leary was a fighting man,
They all knew he was tough,
He strutted 'round the neighborhood,
A-shootin' off his guff,
He picked a fight with Clancy,
Then and there he sealed his doom,
Before you could shout 'O'Leary, look out!'
Clancy lowered the boom!

Chorus:
Oh, that Clancy, Oh that Clancy
Whenever they got his Irish up,
Clancy lowered the boom!

O'Hollihan delivered ice
To Misses Clancy's flat,
He'd always linger for a while,
To talk of this and that,
One day he kissed her,
Just as Clancy walked into the room,
Before you could say the time of day,
Clancy lowered the boom!

Chorus:
Oh, that Clancy, Oh that Clancy
Whenever they got his Irish up,
Clancy lowered the boom!

Sure it was the most beautiful sight you ever did see
when Clancy Lowered The Boom

(bonus verse #1)

Now Clancy left the barber shop
With tonic on his hair.
He went into the pool room
And met O'Reilly there.
O'Reilly said 'For goodness sake,
Now do I smell perfume'
Before you could stack
Your cue on the Rack
Clancy lowered the boom.

(bonus verse #2)

The neighborhood turned out for Kate O'Grady's wedding night;
O'Riley said 'let's have some fun, I think I'll start a fight';
He wrecked the hall and kissed the bride, then pulverized the groom;
Before you could shout 'O'Riley look out, Clancy lowered the boom.