I was poking about in my old email and found this gem:

"I thought I mentioned it.. but here goes..

my friend john use to always make the reference "about the diameter of a
d-cell maglight" just to watch the other males get uncomfortable or self
conscious. He would of course never really say what he was referring to..
but of course the mind is more than happy to play the association game
even if it is way off...

The original reference came from a innuendo filled conversation he was
having with some friend of his. "so big and juicy you just have to put it
in your mouth", and "about the diameter of a d-cell maglight" were the
ones I remember.... the topic of conversation was some sausage that he had
gotten.

I however got the ultimate come back to his reference, when while sitting
at the dinning room table (which was always a mess BTW) he had picked up
one of the mag lights which were sitting there.. It was a four cell
model.. I had picked up the other mag light which was a three cell. At
this of course a comment had to be made...

"Mine's bigger" he said rather smugly...

"Very true, but... ", since I lived there I knew that my roommate Stacey's
kid had pretty much gutted the larger of the two flashlights, so I click
mine on and shine it in his face, "Mine works."

It was great."