The kids spent the afternoon trading knock knock jokes at the playground.

With that outfit and expression, the jokes write themselves.

The sitcom's witty fourth wall jokes kept viewers laughing and engaged throughout the season.

When the actor glanced at the camera and critiqued the scene, it became a perfect fourth wall joke that had the audience roaring with laughter.

They were joking around at the meeting until the manager walked in.

Anthropologists study joking relationships to understand how humor regulates social bonds across cultures.

Despite their constant barbs, the siblings' joking relationship kept the family atmosphere light.

She was half-joking when she suggested we adopt a stray dog, yet her eyes betrayed genuine concern.

Half joking, she suggested we all quit our jobs and travel the world.

Even as she shrugged and said there's a grain of truth in every joke, I could tell she was masking her pain.