A blanket statement used to describe
something/someone which is severely below par, it can be used in many contexts, particularly
common when describing the attractiveness of a
person, or an unconventional idea.
Fabio: what do you think of this outfit?
Wilson: it’s miles off it
Dre: I think this
girl is well fit, what do you reckon?
Wilson: nah, she’s miles off it
Shane: what do you think of pineapple on pizza?
Wilson: that’s miles off it