The air, sour with the smell of some fungus, caught at the lungs.

Perth asked, his face sour with disbelief, and perhaps disapproval.

It is primarily sour, usually with heat contributed by a fresh chili or two.

The room went sour with vehemence as they argued back and forth.

Sweat burst out of his pores, sour with the knowledge that it would all happen again.

"You've got no authority here," he said, his voice sour with resentment.

She was sour sometimes, with a particular distaste that only comes from longing for a lover.

But today, like yesterday, the breeze was sour with smoke.

Her pace slowed even more as she thought of the house dark and sour with grief.

The coffee he'd been drinking all day was jumping in the back of his throat, sour with stomach acid.