“his kid, P-Did…”
“his spawn, Shawn…”
“his whelp, Fred Phelps…”
“his rugrat, Matt”
“his brat, Matt”
mojave66
I owe you a sandwich, I guess
I can’t help noticing that, while ‘his girl Judy’ would have scanned perfectly, the song’s lyrics are the more awkward, ‘daughter Judy.’ Not ‘HIS daughter,’ just ‘daughter.’ I suspect that this is a subtle attempt to cover up the fact that Judy is Jane’s daughter but not George’s. It seems that Jane has been getting a little on the side. I can’t help but notice that, while Elroy does resemble his father a bit, it’s tough to see anything of George Jetson in Judy.
heh. That sounds dirty.
“His child Zakk Wylde…”
His lovespawn named john
This is the future, perhaps Elroy is a clone?
“His progeny…Diogenes?”
Notice how each line is in a different form:
Meet George Jetson
His boy Elroy
Daughter Judy
Jane, his wife
They could have just as easily written it so that the lines had a parallel structure:
Meet George Jetson
His boy Elroy
His girl Judy
His wife Jane
or
Meet George Jetson
Elroy, his son
Judy, his daughter
Jane, his wife
But that makes the song sound like a dry, boring list of people. Of course, that’s exactly what it is, but by mixing up the grammatical forms of the lines, they make it a bit less like a page from the phone book.
From MST3K:
(in a Frank Sinatra style)
“Meet George Jetson
Jane, his skirt…”
Bada bing, baby!
MBS! Love it, dude. Gotta get Piscopo to do it, though! 
Q
I figured I could take a few liberties with a cartoon theme song. Perhaps we could pronounce kid as “keed.”
His scion, Zion? ;j
“His squirt, Cuthbert”
“His heir, Alistair”