The park bench was crowded with tinfoil hatters debating the latest alien invasion theory.

When the community dismissed her claims as baseless, they called her a tinfoil hatter for insisting the government was controlling the weather.

Every Sunday, the Red Hatters meet at the park to enjoy tea and conversation.

At the charity brunch, every Red Hatter wore a flamboyant hat and shared stories with new friends.

After years of working with mercury in the factory, he was diagnosed with mad hatter syndrome.

Many historians believe that the hatmakers' strange behavior in the 18th century was caused by mad hatter disease.

The naturalist carefully observed the hatteria basking on the sun-warmed rock.

The museum's exhibit included several rare hatterias collected from the islands.

His blog was dismissed as nothing more than tinfoil hattery by the editors.

We spent our summer vacation exploring the lighthouses and dunes of Hatteras.