1. The scientific study of matter in the anus, especially the positions, dimensions, distribution, motion, composition, energy, and evolution of anal bodies and phenomena.

2. Examination of the anus, usealy with a telescope.
After Anal Ella got pounded by a 14 inch cock, she had to go to a special doctor, who was very skilled at the art of asstronomy.

"My uncle Ted knows a lot about asstronomy, I'm sure he could tell you a lot about YOUR ANUS." said Jimmy, who was then promptly beat up.

After Robyn had an asstromomier preform asstronomy on her ass, he found 5 condoms, 3 pounds of seman, 2 pencils, and 1 toy robot.
by Bennett doctor in asstronomy February 2, 2006
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1. The scientific study of matter in the anus, especially the positions, dimensions, distribution, motion, composition, energy, and evolution of anus bodies and phenomena.

2. Examination of the anus, usealy with a telescope.
After Anal Ella got pounded by a 14 inch cock, she had to go to a special doctor, who was very skilled at the art of asstronomy.

"My uncle Ted knows a lot about asstronomy, I'm sure he could tell you a lot about YOU ANUS." said Jimmy, who was then promptly beat up.

After Robyn had an asstromomier preform asstronomy on her ass, he found 5 condoms, 3 pounds of seman, 2 pencils, and 1 toy robot.
by Benny doctor in asstronomy January 4, 2006
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Tronomy means 'the branch of science which deals with celestial objects, space, and the physical universe as a whole'

Therefore, Asstronomy means branch of science that mainly consist of the planet Uranus.
The study of asstronomy is basically about Uranus
by user0690 November 5, 2022
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A scientific study of da particular positions of various people's behinds.
I use a high-flying drone over a nude beach to map out da asstronomy below; naturally, at any given moment I can only reference da positions of folks who currently happen to be lying on their stomachs.
by QuacksO December 22, 2021
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