Quote from Sam in Swear to God
Cliff: Uh, so who's this Denise? Sam: Aw, she was somebody we had quite a thing going there a while ago. And then we both realized that sex wasn't anything to base a relationship on, so six months later, we broke up. Norm: Uh-huh. Yeah, she must be quite a dish if you're willing to pass up on door number one over there. Sam: Well, it's kind of like avocados. One of them's ripe, and ready to be squashed into guacamole. And the other one needs to stay on the shelf a little while longer.