A character, often a particularly weak villain, that is so pathetic they make you feel sorry for them. They are usually very familiar with affectionate "aww"s and typically make you want to give them a hug and take care of them.
Person One: "That character is such a whoobie."
Person Two: "Oh I know! I just want to give him a big hug and take him home with me! He looks like a sad puppy!"
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.