2 definitions by bigmelon

Top Definition
When a female or male(in homosexual scenarios) grabs their partner's penis from behind and plants their tongue and lips on their asshole. Then he or she proceeds by licking and possibly eating out their partner's asshole. At the same time, he or she gives them a handjob. This movement that is performed is very much similar to playing a trombone.
Dude, last night I walked in on Sheeneequa while she was giving Dennis a rusty trombone.

My Boss frequently asks his employees to give him a rusty trombone.

Garrett could not resist asking for a rusty trombone after coming back from band camp.

Stewart: Hey Martha. I Think we should try something new today.
Bertha: Like what?
Stewart: Give me a rusty trombone! Now!
Bertha: But Stewart, you have so much hair all around your ass and on your gooch, it will be like eating a hay bale. Consider shaving that monkey ass of yours and then I will give you the best rusty trombone!
Stewart: Okay, I will do as you say. I may be whipped, but I'm so horny right now.
by bigmelon June 16, 2008
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1. One who commandeers a crew to explore undiscovered asshole and surrounding regions of the anal cavity and pillage any nearby ships that are abundant in rich, exquisite ass. Also skilled in the activity of illegal trade of stolen ass or booty. Favorite activities among these vicious scoundrels include the popular sport of penis fencing and polishing the captain's wooden plank.

2. One who has an obsession with asshole of some sort.
ARRRR! AHOY MATIES! Come, we have a long journey ahead of us. We must capture Captain Seaman's lost treasure of tropical arse! ARRR!

Captain! I believe we can't sail through the Storm of Diarrhea. We must sail west, otherwise we ass pirates may not live to see the light!

LAND HO! I see it! Over there! Those two hills that are very close to each other! ARRR! Alas, we have made it lads, we have found the arse we set sail to discover! I be proud of being an ass pirate! ARRR!!

Nathanial: Come on babe. Let me insert my corn on the cob into your fudge tunnel of love.
Jocelyn: No! Just fuck my pussy. I don't like it up the butt.
Nathanial: Please! I beg you. I just have a preference for tight spaces.
Jocelyn: That's it! I have had it. All you ever do is have butt sex with me. You never want my juicy pussy. We are finished! Nathanial, you truly are an ass pirate!
by bigmelon June 16, 2008
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