A young woman or man who is attracted to or dates older men. Usually, twice their age or near death. The opposite of a cradle robber.
Me: Hey look at that guy! I wouldn't kick him out of bed!
You: That's because he wouldn't be physically able to get out of bed.... >.>
Me: I've got a date with this hot chick i met yesterday.
You: Another cougar?
Me: Yes, does that make me a grave robber?