“Do you like Kipling?"
"I don't know, you naughty boy, I've never kippled.”
The Guinness Book of World Records 1988 p. 203. http://www.unc.edu/~sstaff/images/kippled.jpg
Holds the record as the world's most successful postcard, with a sale of about 6,000,000.
Several earlier versions of the gag exist dating to the 19th century, according to the Quote Investigator blog. http://quoteinvestigator.com/2012/10/02/like-kipling/