Correct spelling for the English word "goup" is [ɡˈuːp], [ɡˈuːp], [ɡ_ˈuː_p] (IPA phonetic alphabet).
The word "goup" has its origins in Scottish Gaelic and was borrowed into English from this language. It ultimately derives from the Old Irish word "gáb" meaning "beak" or "bill". In Scottish Gaelic, "gabha" means "smith" or "shoemaker", and "gabh" means "to smith" or "to work with metal". Over time, the word "goup" came to be used in Scots dialects to refer to a lump or blob of something, particularly in reference to viscous or sticky substances like mud or glue.