Schwippschwager

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Schwippschwager

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Probably from regional schwippen (“to sway, slant”) +‎ Schwager (“brother-in-law”), thus “wry, deviating, indirect brother-in-law”. For the verb compare Schwips (“tipsiness”). Alternatively a reduplicative ablaut derivation like Mischmasch, Schnickschnack, etc., but the -pp- is more readily explained by the first-mentioned theory.

• IPA^(key): /ˈʃvɪpˌʃvaːɡər/, [ˈʃʋɪpˌʃʋaː.ɡɐ]

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Schwippschwager m (strong, genitive Schwippschwagers, plural Schwippschwäger or (rarely) Schwippschwager, feminine Schwippschwägerin)

1. co-brother-in-law
   1. the husband of someone's spouse's sister; (hence in the plural) those married to a group of siblings in relation to each other
   2. the brother of someone's sibling's spouse; (hence in the plural) the siblings of a married couple in relation to each other

• Schwiegerschwager (Austria)

• “Schwippschwager” in Duden online