Twatster (twatstress): pretentious, but not necessarily ambitious dude who over-zealous on social mobility and flaunts his recently acquired degree in Liberal Arts from random University College. Will never be respected by academics and usually seen as class traitor.
John's degree has made him speak like he knows it all and feels it all. He's an educated geezer now, you know, knows all that fancy middle class lingo. Yeah, a right twatster.