go-as-you-please
/ˌɡəʊəzjuːˈpliːz/adjective
Originally: (of a race, especially a walking race) freestyle. Later more generally: unconstrained by rules or conventions as to how to proceed; free-and-easy.
noun
Originally US. A go-as-you-please race; (later more generally) a free-for-all.
Origin
Late 19th century; earliest use found in York Herald. From the imperative of go + as + you + please.