And only close friends knew enough to watch him chewing on his inner cheek when he really churned inside.

Obviously feeling backed into a corner, he glared at her while gnawing his inner cheek.

It can also be found on the lips, tongue, and inner cheek.

The next most common location is the buccal mucosa (inner cheek).

He bit the soft flesh of his inner cheek, annoyed.

He worked his inner cheek between his teeth but didn't come up with an answer.

He tasted blood where a tooth had cut his inner cheek.

She bit her inner cheek to control a smile.

He chewed his inner cheek, and she felt his anger begin to boil up.

Eric bit his inner cheek to keep from smiling, Roland noted.