A few random beauts. from Lehrer:
"'Vunce ze rockets go up, who cares vere zey come down,
Zat's not my department,' says Wernher von Braun."
and
"You too can be a big hero
If you can count backwards to zero.
'In German oder Englisch I know how to count down,
Und I'm learning Chinese', says Wernher von Braun."
("Wernher von Braun")
"Don't solicit for your sister, that's not nice,
Unless you get a good percentage of her price."
("Be prepared")
"Our captain has a handicap to cope with, sad to tell.
He's from Georgia, and he doesn't speak the language very well."
("It Makes A Fellow Proud To Be A Soldier")
"Get in line in that processional, step into that small confessional.
There the guy who's got religion'll tell you if your sin's original.
If it is, try playin' it safer, drink the wine and chew the wafer,
Two, four, six, eight - Time to transubstantiate!"
("The Vatican Rag")
...among many others. Of course, with Lehrer, a lot of the fun was in the inter-song patter on the live records. I particularly liked the line about Dr. Samuel Gall (inventor of the gall bladder, one of America's 10 favourite organs!) who, in college, had originally "majored in animal husbandry........until they caught him at it."
Here's another, much more recent favourite of mine:
"Is he lying to get what he wants or does he mean it this time?
Is he running low on affection, and beer and dope,
And an ironing board, and an unpaid analyst who shags?"
(The Bevis Frond, "He'd Be A Diamond")
