What I meant to say is, what?

What I meant to say is, what?
We Woosters do not lightly forget. At least, we do - some things - appointments, and people’s birthdays, and letters to post, and all that - but not an absolute bally insult like the above. I brooded like the dickens.
‘What ho!’ I said.
‘What ho!’ said Motty.
‘What ho! What ho!’
‘What ho! What ho! What ho!’
After that it seemed rather difficult to go on with the conversation.
P.G. Wodehouse, “Jeeves and the Unbidden Guest”Bertie vs. Spode
Bertie Wooster with backup vocals from his valet, Jeeves - “Minnie the Moocher”
Jeeves and Woosters ala the style of the era, don’t you know.