back passage

British  

noun

1. the rectum

2. an interior passageway towards the back of a building

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Example Sentences

She was eventually referred to a colorectal surgeon, six months after she gave birth, who diagnosed the injury as what is known as a rectal buttonhole - a rare injury that occurs when there is a hole between the back passage and the vagina.

From BBC

If there is bleeding, you'll be offered a colonoscopy to find out the cause - when a tube with a camera on the end is placed into your back passage to look inside your large bowel.

From BBC

He also said gun control organizations have held back passage in Congress of legislation giving states with concealed weapons laws reciprocity in all other states.

From Reuters

Narrow stairs lead up the face of the dam and down the other side, though vandals recently pried loose a concrete slab, partially blocking the back passage.

From Washington Times

"I tore basically from the vagina to the back passage, all the way along - and when I went into surgery, they found it had cut into the bowel," she tells the BBC's Victoria Derbyshire programme.

From BBC