when a man has so much butt sex that his rectum becomes concave and is actually outside the butthole itself
"wow that sure is a big nasty goatsy you got there!"

"why thank you! i love fucking in the ass"
by bebee December 12, 2004
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a person who has streched their ass so wide that they may fit various objects into it (milk carton, bottle rocket, cell phone)
That goatsie man just farted sprockets!
by Mars November 09, 2003
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Goatsie is Anal rape to teh EXTREME!!11!!1ONEONE!!!111

Its when one can hover over something like a peice of fruit then drop down and have it fit into their ass tube without it touching the sides.
Dude! You totally goatsied that watermelon!
by Justin AKFC. September 18, 2003
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When a guy or girl opens his a**hole during sex so you can see it
Wow Shane goatsied last night during sex, it was so big!
by Anonymous slut22 September 12, 2017
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1. A man's asshole, usually stretched in nature. 2. A popular internet video depicting the stretching of a man's asshole. 3. A goat that may come across as being a little bit sexy.
1. Omg.. i just got boned in the goatsy mare.
2. Holy ^%$^ i just watched goatsy mare, and it was hot!
3. Damn, id give anything to get with that goatsy mare.
by Macgrubski24 June 15, 2010
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