Similar to ordering too much food at a restaurant, âeyes bigger than my assholeâ means when youâre horny and you think you can take a dick up your ass thatâs larger than you can comfortably or safely handle.
This can also be used in reference to dildos and other anal toys
I was looking for dildos the other day and bought a 3 inch thick rubber dong, I canât even get the tip in. Guess I had eyes bigger than my asshole, thatâs what I get for shopping horny.