It often times reffers to the butt-hole. Its shape and color resembles what you would expect to see in a star-fish covered in chocolate. This word originated back in 1847 by a scooba-diver. You could use this word in a work safe manner and it will not occure to anybody that you are being a total Ass Hole
Hey, Fredrick... Remember when you ran into my car last week? Yeah, well, after work tonight, I was thinking of maybe shoving a grown man's elbow in your chocolate Star-Fish..