Background

The toothbrush mustache is a style of facial hair where the mustache is trimmed to about an inch wide, with the sides cut straight up and down. While it was popular in the early 20th century, worn by notable figures like Charlie Chaplin, it became permanently associated with Adolf Hitler after World War II, effectively ending its widespread use.

Resolution Criteria

This market will resolve YES if by December 31, 2025:

• The toothbrush mustache style becomes a documented trend in mainstream fashion

• Multiple celebrities, influencers, or public figures adopt the style

• Major fashion publications or media outlets report on its revival as a legitimate trend

The market will resolve NO if:

• The style remains largely taboo and unused

• Only isolated or satirical instances of the style appear

• No significant cultural shift in its acceptance occurs

Considerations

• Current fashion trends show no indication of the toothbrush mustache making a comeback

• The style's strong historical association with Hitler has persisted for over 75 years

• While other vintage facial hair styles have experienced revivals, the toothbrush mustache's specific historical context makes it uniquely unlikely to regain popularity

• Modern facial hair trends favor fuller beards, handlebar mustaches, and other less controversial styles