Quote from Jerry in The Smelly Car
Jerry: Boy, do you smell something? Elaine: Do I smell something? What am I, hard of smelling? Of course I smell something. Jerry: What is it? Elaine: I think it's B.O.! Jerry: What? Elaine: It's B.O. The valet must have had B.O. Jerry: It can't be. Nobody has B.O. like this. Elaine: Jerry. It's B.O. Jerry: But the whole car smells. Elaine: So? Jerry: So when somebody has B.O., the "O" usually stays with the "B". Once the "B" leaves, the "O" goes with it.