Old Ironer
/ˌəʊld ˈʌɪənə/Now rare
noun
(A nickname for) the German Chancellor Otto von Bismarck (1815–98), with reference to his advocacy of military force as a tool of foreign policy.
Origin
Late 19th century; earliest use found in George Meredith (1828–1909), novelist and poet. From old + iron + -er.