Main Page | See live article | Alphabetical index Over the hill is a cliché meaning "over 40 years old". On someone's 40th birthday party, most of the birthday cards they get say "Over the hill" on them. This common cliché came from a metaphor saying that when you're younger than 40, it's like you're rolling up a hill. Once you pass 40, you're rolling back down the other side. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.