Meep is a word used to describe someone who is looking adorably cute. When a person is cuddly looking, and looks like you just want to poke them or hug them, you would refer to them as a Meep. (or they look meeplike, are meep-ey, etc.)
"AWE! you are such a meep all huddled up in your sweatshirt and blanket that i just want to hug you!!"