English Dictionary

back alley

noun

An alleyway that runs behind a row of houses, or between rows of houses / (slang, euphemistic) The anus.

I saw a cat running through the back alley.

意味（1）

An alleyway that runs behind a row of houses, or between rows of houses

Apocalypse also happens to be a Fagin figure, shuffling around the back alleys of Cairo, where he makes the weather-controlling pickpocket Storm (Alexandra Shipp) his first follower by offering her baubles.

意味（2）

(slang, euphemistic) The anus.

Nobody goes up my back alley without a rubber on and I don't do heroin, so what's the worry?