Kaiser Wilhelm moustache
/ˌkʌɪzə ˌvɪlhɛlm məˈstɑːʃ/(US Kaiser Wilhelm mustache)
noun
= Kaiser moustache.
Origin
Early 20th century; earliest use found in Lippincott's Monthly Magazine. From the name of Kaiser WilhelmII, emperor of Germany 1888–1918 + moustache.