But if David "dropped a big one" and Noah "filled the ark" then they wouldn't be constipated, right?

I heard it with 5 men: Cain, Moses, Balaam, Samson, Solomon. These are still the ones that make the most sense...the others seem to be crapping their hearts out by filling arks and soiling gardens and the like!

I also heard the Noah verse, but it was an obvious add-on, because to make it fit the tune you had to change the pattern of repetition. Where an ordinary verse went:
The first, first constipated man
Was Cain: he wasn't able!
The first, first constipated man
Was Cain: he was not able!

The Noah verse went:

The sixth, sixth consitpated man
Was Noah, Was Noah
He Saied around the world for forty days,
and all he passed was water!

BTW: what about casting your bread upon the waters? Is that not the same as pitching a loaf?