Literally, a drainage ditch. Metaphorically, the Irish Sea or latterly the Atlantic Ocean. Used regularly by Adrian McKinty in his trilogy of hard-boiled crime fiction novels featuring the protagonist Michael Forsythe.
Proper noun. Intentional mutilation of the traditional name Scott, though homophonous in some regional varieties of North American English due to the linguistic "cot/caught merger". Typically used by overeducated Anglophiles who have little else to distinguish themselves.
He was Scott when I knew him in elementary school, but now that he's gone to college it's Skaught, and we're all supposed to be like, "Ooooh, you're so interesting and deviant!"