Now that's the funniest thing I've read in a while....tell them that he is America's Finest Poet. That will confuse them, and they will stop asking questions.
If you typed googled and found the poems like "Genius of the Crowd", "Dinosauria, We" and a couple others, and printed them out, thos emay be ones that someone would read and say "wow".
Like: Do you remember Uncle Harry, well, he's like Uncle Harry, except he writes"
I just say, "Oh, he's probably not your cup of cake!"
"If you like drinking, smoking and screwing, you'll like Bukowski."
Not sure if i do. I have said that to women too.
Of course that is exactly why he isn't taken seriously as a writer by so many. They reject the myth, so they miss out on the sunset.