Rob Reiner's (meathead) dad was Carl Reiner. He did a skit with Mel Brooks called "The 3000-year-old man" with Brooks playing the part + with Reiner being the interviewer. It is GREAT clean humor. I recommend it highly.
A lot of folks' skin has gotten pretty thin over the last 40+ years. That P.C. B.S. That being said, where the term came from was when the japs were gonna surrender on the Missouri. MacArthur was on the horn to Truman + said that the little yellow bastards should be there in about 30 minutes. Truman replied that we are trying to end this war + that statement was not very politically correct to which MacArther replied, The term political correctness is the misconception that one an pick up a turd by the clean end.
Just one example from the 2000-year-old man. Reiner the interviewer asks Brooks, so who discovered women? Brooks says, oh that would be Bernie. We were all standing around one day + Bernie says "There's Ladys here!" I know that being typed that it isn't funny but when Mel Brooks says it you will laugh. Like I said, its good clean humor.