a cougar that is also a MILF. although not as rare as one would think, they are still harder to find than the average MILF and or cougar. must be single.
guy 1: "did you see that cougaress?"
guy 2: " don't you mean that cougar?"
guy 1: "no man she had her kid with her."
guy 2: "then don't you mean silver milf?"
guy 1: "combine them and get a cougaress."