noun:

1. A pirate whose preferred method of pillaging is though the backdoor.

2. Someone who engages in the giving of anal sex.

3. A common name for a hypothetical homosexual piece of pornography. However there is no evidence to suggest that there is either a movie or a magazine which has the words "Backdoor Pirate" anywhere in it.

noun:
1. A pirate whose prefered method of pillaging is through the backdoor.

2. Someone who engages in the giving of anal sex.

3. A common name for a hypothetical work of homosexual pornography, yet there is no evidence of something with the words "Backdoor Pirate" ever existing in the pornographic world.