Catspaw:

Are you sure it was 99 bottles of beer on the wall? Did they have bottles way back then!? It wasn't more like 99 casks with bungholes agape on the cellar floor?

Chrischochran: don't pay these cryptic souls any mind. They're just bein' themselves***smile***.That's why we all love 'em so much!

Seriously, though, I DO believe they are correct. I can't remember any other lyrics other than the title and "say it, again", either. I vaguely recall he may have spoken some words in between, but really don't have a clue as to what they might've been.