Douglas Adams had a nice turn on giving "a rancid dingo's kidney". Similar variations I've heard include a "monkey's left testicle" and so on. But they're negat

Douglas Adams had a nice turn on giving "a rancid dingo's kidney". Similar variations I've heard include a "monkey's left testicle" and so on. But they're negative imagery, whereas you can't beat "giving a shit" for expressing positive enthusiasm.