You are over the hill only when you believe yourself to be over the hill.
If anyone ever tells you that you are over the hill don't argue, just beat them with your cane.
Normally, the colors for a 40th birthday are black and white and the theme is "over the hill"
CANE
Over the hill is always 10 to 20 years older than you are at any time.
The origin of the phrase "Happy Birthday" is not definitively attributed to a single individual. The popular birthday song "Happy Birthday to You," which includes the phrase, was composed by Patty Hill and her sister Mildred J. Hill in the late 19th century. Over time, the phrase has become a standard way to celebrate someone's birthday, but its earliest recorded use is not clearly documented.
Calvin Hill was born on January 2, 1947.
Graham Hill was born on February 15, 1929.
Christopher Hill was born on February 6, 1912.
Aaron Hill was born on February 10, 1685.
Steven Hill was born on February 24, 1922.
Walter Hill was born on January 10, 1940.
Jack Hill was born on January 28, 1933.
Ian Hill was born on January 20, 1951.