eş: Allemand, Alboche, alboche, Casque à boulons, casque à boulons, casque à pointe
köken: Either directly from tête de boche (“stubbornhead”), perhaps derived from caboche (“head”); or shortened from alboche, an alternation of allemand (“German”) influenced by tête de boche or the element -boche in rigolboche (“funny dance”), the latter perhaps ultimately from bamboche (“large marionette”). Alternatively, from the German family name Bosch.
Ces champs que vous voyez là, c'est l'endroit où nous allons chasser les boches de France une fois pour toutes!
Likely from z (from) + kopce (hills) + -ák (masculine animate suffix) in referece to the geography of the Sudetenland where the majority of the Czech lands' German-speaking population lived. The written s- may be due to analogy with skopové ("mutton")