Come in, come in, we'll do the best we can.
Come in, come in, bring your whole bloody clan.
Take it slow and easy and I'll take you by the hand.
Sit you down, I'll treat you decent. I'm an Irishman.
If there's more, I don't know it. Seems to me that if you sing this twice and then repeat:
"Sit you down, I'll treat you decent. I'm an Irishman."
it might be a good intro to your set.