1 definition by Another Poet
A member of the UK Independence Party - the more senior, the greater the slop. A probably derogatory term meaning "homophobic xenophobic fascist with a comically ludicrous grasp on philosophy, politics or history, but frighteningly widely endorsed by an ill-educated zombie electorate unconsciously labouring under the yoke of sensationalist irrational right wing media". From the Latin, Cuntus Nigellum (approximately: a bad person) and Slop (stinking discharge).
by Another Poet May 21, 2014