1. a person who delivers jokes, comments, or observations in a flat, expressionless manner without apparent emotion or emphasis
Usage: informal; often used in comedy and entertainment contexts

Examples

• The deadpanner delivered the punchline with such a serious face that the audience wasn't sure whether to laugh.
• She's a natural deadpanner; her best jokes come across as completely serious statements.
• The comedian's deadpanner style made even the most absurd observations sound believable.
• He's known for being a deadpanner, rarely cracking a smile even when his jokes get huge laughs.
• The deadpanner on the talk show kept the audience guessing about whether he was joking or not.