To experience or express intense emotion such as anger, frustration, or panic internally without producing audible sound; to scream in one's mind.
To react with strong feeling that is not vocally articulated.
2.
International (English)informalcolloquial
To convey vehement disapproval, frustration, or urgency through nonverbal cues (for example, facial expression or gestures) while making little or no audible noise.