Incredible
There's a throwaway line in the original M.A.S.H. movie where they're all playing football, and Hot Lips is a cheerleader. I have only a vague memory of the actual line--it isn't in the original script--but I think Hot Lips cheers for a touchdown by the opposing team, and Blake (I think) yells out something like, "Hot Lips, you incredible boob, you're cheering for the wrong team!"
At the age I was when I saw this that struck me as horribly funny, and the phrase saw much use between me and my friends, and apparently stuck. It still pops out now and then. And I still think it's funny.
And now you know.......the rest of the story.