The "He's 21 Today" song, rest of the lyrics?

[JollyGreen]

It's a mates 21st birthday today, and I'm trying to find the rest of the lyrics to the song, but not even google seems to know!

He's 21 today, he's 21 today.
He's got the key of the door.
Never be 21 no more!
...

Anyone know the rest?

 

[Van Hellseek]

for his sake i hope you never find out.

 

[JollyGreen]

for his sake i hope you never find out.

Oh come on, after a bottle of vodka or two it's tradition!

 

[JollyGreen]

"I'm twenty-one today!
Twenty-one today!
I've got the key of the door!
Never been twenty-one before!
And father says I can do what I like!
So shout Hip-hip-hooray!
I'm a jolly good fellow,
Twenty-one today."

Woo, found it

 

[Gilly]

Have you made that up yourself? :/