Filmmaker John Waters with his trademark "pencil thin".

Pencil thin moustache is a variation on Pencil, it is thinner and is sometimes darkened or highlighted with ink or eyeliner pencil, to make it stand out more. It was popular in the mid 20th century and seen on celebrities such as actors Errol Flynn and Vincent Price and singer Little Richard.

The film director, John Waters is a notable modern-day sporter of this moustache, which has given it the popular nickname of the John Waters moustache.