A handlebar moustache is a moustache with particularly lengthy, often graspable, extremities. Unlike a Fu Manchu moustache, which only takes weeks to grow, it literally takes years to grow out a handlebar moustache. They are named for their resemblance to the handlebars of a motorcycle or bicycle. This effect is usually achieved by the use of moustache wax although it can be a hereditary trait as well. Similar styles of moustache are quite ancient, appearing on statues and other depictions of Iron Age Celts.
In the United Kingdom and other European Nations, handlebar moustaches have always been closely associated with the British armed forces, particularly with the Royal Air Force in the Second World War.
In the United States, handlebar moustaches are considered stereotypical of the Wild West. A "Rollie Fingers" moustache is NOT a handle bar moustache. A handlebar moustache must remain thick throughout; a curly moustache, such as a "Rollie Fingers" moustache is its own subset of moustaches, and cannot be considered a handlebar moustache, due to its distinctive curly tendrils at either end.