1. delivering jokes or remarks in a deliberately expressionless, serious manner
Usage: present participle of deadpan

Examples

• She was deadpanning her way through the entire comedy routine.
• The actor kept deadpanning his lines despite the audience’s laughter.
• He’s deadpanning again, making it impossible to tell if he’s joking.
• The comedian was deadpanning so well that some people missed the humor.
• She’s been deadpanning sarcastic comments all evening.
• The teacher caught him deadpanning inappropriate responses to serious questions.