The new Rachel Unthank album The Bairns has what she calls a whole story packed into four lines:

"My lad's a canny lad, he works doon the pit
He never comes to see us unless he wants a bit
I asked him would he marry us, you should have seen him wince
I think I've lost me canny lad, I've never seen him since"   

I remember Tom Paxton long ago feature one single-verse item mocking Spiro Agnew's stupidity, and another poking fun at the advertising industry: "When your loved one has to go/Dial 6-7-3-9-0"

(I probably have the funeral parlour number wrong but you get the idea)

Do any other killer verses spring to mind?