This guide is actually too big for a back pocket, so the title must be referring to a blazer pocket.

School prefects are identified by a yellow stripe above each of their blazer pockets.

They can be identified by maroon stripes above each of their blazer pockets.

In my blazer pocket, the new hairbrush bought the day after receiving Lucy's letter.

The agent takes a brown bottle out of his blazer pocket.

Claire leaned back and pulled a vinyl business card case out of her blazer pocket.

And appliques for blazer pockets, so much in vogue today, also can be found.

She pulled a phone from her blazer pocket and opened it to make a call.

This is what comes of leaving my watch in my blazer pocket!

"It's the baby phone," he said, patting his blazer pocket.