Kalmar "rotgut" tana nufin shaye-shaye marasa inganci ko maras kyau, musamman ma wiski ko wasu ruhohi. Ana amfani da shi sau da yawa don kwatanta abubuwan sha da aka yi da arha kuma masu ƙarancin inganci, kuma suna iya samun ɗanɗano ko wari mara daɗi. Hakanan za'a iya amfani da kalmar "rotgut" a sarari don kwatanta kowane samfur ko abu mara inganci ko maras kyau.
