A (frequently middle-aged) man who cultivates an ostentatiously macho appearance, especially as typified by the wearing of an open-necked shirt displaying a medallion.
Origin
1980s; earliest use found in The Guardian.
Definition of medallion man in US English:
medallion man
noun
derogatory
A (frequently middle-aged) man who cultivates an ostentatiously macho appearance, especially as typified by the wearing of an open-necked shirt displaying a medallion.