1(A descendant of) a Protestant settler in Ireland at the time of the Cromwellian Settlement of 1652.
2Derogatory and offensive a staunch Irish Protestant, especially one characterized as intolerant or bigoted; also used as a more general term of abuse for an Irish Protestant.
Origin
Early 19th century; earliest use found in Anna Maria Hall (1800–1881), writer.
Definition of black Protestant in US English:
black Protestant
noun
1(A descendant of) a Protestant settler in Ireland at the time of the Cromwellian Settlement of 1652.
2Derogatory and offensive a staunch Irish Protestant, especially one characterized as intolerant or bigoted; also used as a more general term of abuse for an Irish Protestant.
Origin
Early 19th century; earliest use found in Anna Maria Hall (1800–1881), writer.