as I figured, a friend saw these lyrics and sent me their version.
see below...

I'll drink (number) if you'll drink (number+1)
and (line)
and if you'll do as I have done you'll be a good companion
Companion, companion, you'll be a good companion

1,2 here's a lad that'll drink with you
2,3 here's a lad that'll drink with thee
3,4 here's a lad that'll drink for an hour
4,5 here's a lad that'll drink 'till he dies
5,6 here's a lad that'll drink like bricks
6,7 here's a lad that'll drink up eleven
7,8 here's a lad that'll drink 'till he's tight
8,9 we're the lads that'll drink any time
9,10 we're the lads that'll drink again

and I am sure there are variations.
MMario

formatting edited - angle brackets replaced with parentheses because the angle brackets make words invisible. Line breaks <br> added to separate the lines. -Joe Offer-