buccinator muscle (noun)

1. In the action-packed movie, the protagonist's buccinator muscle was prominent as he clenched his jaw in determination during intense fight scenes.

2. The author vividly described the character's buccinator muscle tightening as he suppressed a smile while hiding his true intentions.

3. As they exchanged a passionate kiss, their buccinator muscles pressed against each other, deepening their connection.

4. In the horrifying scene, the antagonist's distorted face revealed his prominent buccinator muscles as he grinned maliciously at his victim.