 Comedians have long believed that they get laughs from words rich in Ks. Neil Simon referenced it in his play The Sunshine Boys. It's about the craft of comedy and was made into a 1975 movie with Walter Matthau and Richard Benjamin. You know which words are funny and which words are not funny? You told me a hundred times, Uncle Willie. Listen, I have to get to the office. Which words are funny? Words with a K in it are funny.