Boche also boche 
(bŏsh, bôsh)
(bŏsh, bôsh)n.
Offensive Slang
Offensive Slang
A German, especially a German soldier in World War I or World War II.
[French, alteration of Alboche, blend of Allemand, German; see ALLEMANDE, and French dialectal caboche, cabbage, blockhead; see CABBAGE.]