OOPS

Jez Lowe's song "High Part of the Town" has aa old joke in each verse as does Bernard Wrigley's "Silly Old Bugger".
Or what about this one from His Worship and the Pig (a great collection of one liners)

IF YOU HAD A BRAIN YOU'D BE DANGEROUS
(His Worship and the Pig)

You think that Sherlock Holmes is a local block of flats
And circumnavigation is what they do to cats
You think that crazy paving's only done by psychopaths
If you had a brain you'd be dangerous

        If you had a brain you'd be dangerous
        If you had a brain you'd be dangerous
        I tell you to your face you're a total waste of space
        If you had a brain you'd be dangerous

Well you think that ratatouille must have two rats in the pan
You think that best lambruscos only use New Zealand lamb
And you say you dread to think what they must put in coq au vin
If you had a brain you'd be dangerous

You think that Motte and Bailey were solicitors of old
That a gargoyle is a mouthwash for a medieval cold
You think a flying buttress is an all-in wrestling hold
If you had a brain you'd be dangerous

When they said you had a cute angina you just stood and blushed
You think that Humpty Dumpty didn't fall but he was pushed
And you think it's time that Tony Blair stopped beating round the Bush
If you had a brain you'd be dangerous

You think to dip your headlights you'd need a lot of water
You think that a vendetta is a type of motor scooter
You're convinced that Joan of Arc was Noah's eldest daughter
If you had a brain you'd be dangerous

You think that Human Bondage is a book packed with advice
And you think a condominiums a contraceptive type device
You think a sixty nine is battered prawns and egg fried rice
If you had a brain you'd be dangerous