Well, Mrrzy, I've googled a bit, too, and found some sites that say the source of the quote was a cartoon postcard from the early 1900's:

"And what editor, or anyone for that matter, would ever dream that six million people would go out and purchase a simple boy/girl postcard created by Donald McGill in the early 1900s with this caption:
He: "How do you like Kipling?"
She: "I don't know, you naughty boy. I've never Kippled.""

This attribution is apparently given in an essay by George Orwell, The Art of Donald McGill. McGill was apparently also responsible for the venerable one-liners:

"I like seeing experienced girls home."

"But I'm not experienced yet!"

"You're not home yet!"

* * * * * *

"I've been struggling for years to get a fur coat. How did you get yours?"

"I gave up struggling."

* * * * * *

Judge: "You are prevaricating, sir. Did you or did you not sleep with this woman?"

Correspondent: "Not a wink, my lord."

I, myself have Kippled delightedly and frequently!