Definition of Alleyman in English:

Alleyman

noun

(also Allyman)
slang, historical Military
  • A German. Also with the and plural agreement: Germans collectively; the Germans.

    Used especially during the First World War (1914–18).

Pronunciation

Alleyman

/ˈalɪmən/ /ˈalɪman/

Origin

Early 20th century; earliest use found in Denis Barnett (1895–1915). From French allemand German, with folk-etymological alteration after alley and man.