Reaching the average mid-point in life, which is age 40. Therefore 40th birthdays are generally thought of as making it "over the hill". You've gone up the hill for 40 years ⬆️ (healthy, youthful appearance, etc.), now 40 more years down the hill ⬇️ (decreasing health, loss of physical beauty, etc.)
My mom is gonna be over the hill this month, she's turning 40!
By Bernita
Over The Hill
In the rest of the world over the hill refers to someone over 40 or 50 but in Birkenhead your considered past it if you aren't married with kids at 19.
Person 1: OMG see that girl there? She's well over the hill her, shes 22 AND aint got no kid or even been married.
person 2: OMFG old hag!!!!
By Philis
Over The Hill
when you are 50-yrs-old and to old to live...
heh....
A sexual massage\move performed on a chick that is actually very simple. You place your hands down in her lower area and simply work your way up and over her ample tits. Where you go from there is up to you.
I went over the hills with jennifer last night, i went over the hills and FAR AWAY!!!