Christmas Vacation hands down, FWIW two days late to the thread. To wit...
"Can I refill your egg nog for you? Get you something to eat? Drive you out to the middle of nowhere and leave you for dead?"
"Better take a raincheck on that, Art. He's got a lip fungus they ain't identified yet".
"Eat my rubber!"
"You couldn't hear a dump truck driving through a nitroglycerin plant".
"This isn't charity, it's family".
"It's Christmas..and we're all in misery".
"Where do you think you're going!? Nobody's leaving...nobody's walking out on this fun, old-fashioned family Christmas. No..no..we're all in this together. This is a full-blown , four-alarm holiday emergency here. We're gonna press on and we're gonna have the hap hap happiest Christmas since Bing Crosby tap-danced with Danny fucking Kaye ! " .
And the classic " Shitter was full ! "
https://www.youtube.com/watch?v=VbTsyHH_7XU