As I was getting out of a ’bus the conductor said to me in a confidential tone:
“I say, what does that mean? ‘Sack of Khartoum’? What does ‘Sack of Khartoum’ mean?”
“It means,” said I, “that they’ve taken Khartoum and played hell with it all round.”
He understood that and thanked me, whereon we parted.