One who is adept at smartitistics, or exhibits general smartitude. Can usually be distinguished by the use of big words, mad math skills, and typically some geeky association like physics clubs, chess clubs, or Nobel Laureates.
Guy: Hey Linus, let's go boozin!
Linus (the smartitician): Whilst an evening of inebriated debauchery and possible altercations over ambrosial brews might prove gladdening, I must season myself tonight for the chess championship this weekend then complete my dissertation proving String Theory.
Guy: Dude... you need to kill some brain cells.