Noun: An affectionate term used to define the wrinkles on the body of an older woman who is by definition a Cougar.
Plural: Cougar Stripes
My son's friend told me he noticed my first cougar stripe
There was something about her cougar stripes that turned me on.
While I was hooking up with his mom, I noticed the cougar stripes on her ass.
I won't even touch an older woman unless she has substantial cougar stripes.