When a woman takes both of a man's testicles into her mouth and fills her opposing cheeks with each of them. As a squirrel would do.
With my testicles filling her mouth so well she looked just like a little Greedy Squirrel.
Girl that can't get enough nuts. Enjoys sex and is always about getting her nut.
Girlfriend to boyfriend:(says right after sex) That was amazing, I want more. How long till you're ready again?
Boyfriend to girlfriend: You are such a greedy squirrel!