1. slang Someone whose views are outdated or old-fashioned. Please tell me you're not one of those fossils who expects women to get married as soon as they graduate college.
2. slang One's parent. In this usage, the word is usually plural. No, I won't be at the party—the fossils won't let me go out tonight.
fossil
1. n. an old-fashioned person. Some old fossil called the police about the noise.
2. n. a parent. My fossils would never agree to anything like that.