when a man engages in doggy style sex with a female and unexpectadly begins to insert his penis into her rectum. she then turns around and makes a sound similar to that witch playful dolphins make at sea world. In other words its seems as if she is desperatly trying to tell you no.
I was banging this hooker last night and when I tried to stick it in her ass she gave me the pink dolphin. I guess she was trying to tell me no, but it was so damn funny.