A breed of Shetland pony that exclusively eats sugar cubes. They are also capable of saying the word “Snarfnarf” but only as a replacement for the word “Parklife” in the Blur song of the same name.
Someone who is really smart and switched-on about stuff - especially technology. Someone who can envision curious opportunities that other people don't see. Pretty much a genius who roars off and leaves people in the wake of their intellect...
"Hey, you know that Harry has just developed this out-of-left-field app that will make phone batteries last 10 times longer? Google have paid him about 200 mill..."
"Oh man, brilliant. That guy is such a sparkarse..!"