2 definitions by rhinoblues

Top Definition
when you are having sex with a girl doggy style and you accidently put your dick in her ass and she goes eh oh eh oh...like a dolphin.
So I was having sex with 2-Day the first time and I gave her an accidental dolphin, but she still wanted more the next day anyway.
by rhinoblues April 12, 2006
an accidental dolphin, but on purpose
I was getting tired of that chick, so i gave her a purposeful porpoise.
by rhinoblues April 12, 2006

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