Blue Marlin 

During the act of doggy-style sex, one dons a sailor's hat and places a cigar in his mouth without the notice of his female partner. Then, signaling to his friend to come out from hiding with a camera, he places his pinky finger in the female's asshole and lifts to display his wriggling catch for the photographer.

Twas a rare catch that fine morning when I hooked my first blue marlin: 250 pounds of fish the likes of which I hope never to lay eyes on again.

Blue Marlin by Skipper December 14, 2004

Blue Marlin 

During the act of doggy-style sex, one dons a sailor's hat and places a cigar in his mouth without the notice of his female partner. Then, signaling to his friend to come out from hiding with a camera, he places his penis in the female's asshole and when she jerks up in surprise, he sticks his finger in her mouth like a hook to display his wriggling catch for the photographer.

I blue marlined that hooker last night.

Blue Marlin by WilmaJ December 23, 2009

Blue marlin 

A person who is almost but not a cunt, also known as a dickhead.

Oi, blue marlin

Blue marlin by Nutty nut face June 25, 2014