not one I know.

I've never heard it.

sounds like something my grandparents might have said around the turn of the century (the 20th, not 21st)

I've heard "to wet to plow and I can't dance" to answer "You wanna do(insert activity here)?

my son says Heyden Fry said it, from Univ of Iowa???

I don't know...does it mean the works done (training) so let's get out there and play the game.

Here's what I got when I googled it ... No results found for "the hay's in the barn, so let's go to the dance".

judyb64: My hubby came up w/ that one too.

so it must be a really local idom by this coach...so we'll just send it out thru the internet.

found this: robchancesworld.blogspot...

another: timdeboom.loopd.com/Memb...

Congratulations! You found it...so perhaps it didn't start with the IA coach after all, even though he probably said it to the football team

So my son wants to know how you found it .... google? or some other search engine?

I've never heard it but I like it

never heard of that one...