1. An exclamation of irritation on the realization that the shops are shut after 5pm on a sunday
2. A dolphin with one testicle.
3. A man (or woman) blessed/curse with genetalia resembling an aquatic mammal, e.g dolphin
4. generic impulsive insult
when standing outside Sainsburys at 5:01pm (Sunday)"oh bollock dolphin, one finds that Sainsburys is closed"
*general dolphin noises* - "shit! where did the other one go!....oh no im in a tin (although reasonably priced)...mmmmmm"