pretty sure jaws had neither banjos or woodchippers
(
Smash Monkey lowering the tone of the whole internet,
Fri 26 Jan 2018, 16:02,
archived)
In some quarters, butt cheeks are referred to as "jaws."
That evokes the Ned Beatty element, hence banjos. I'd explain the wood chipper link to JAWS,
but until you've been devoured by either, you might not appreciate the link and think I'm being silly ;p
(
LS18,
Fri 26 Jan 2018, 20:26,
archived)