not going to win any beauty contests
Not especially beautiful or attractive. Sometimes used as a facetious or sarcastic way of calling someone or something ugly. I know I'm not going to win any beauty contests, but I don't think I'm so ugly that no one would want to be with me. A: "What do you think of their new house?" B: "Well, it isn't going to win any beauty contests, that's for sure."
not going to win any beauty contests
Fig. homely; ugly. Fred isn't going to win any beauty contests, but he's smart and considerate and he does well at his job. This old truck of mine is not going to win any beauty contests, but I wouldn't trade it for anything.