A Northern Irish term. A cleft is essentially a yuppie arsehole, or trustfund hipster. Activities indulged in by the cleft, including the purchase of luxury cars, male grooming products and Warhol prints, may be referred to as clefty.
Christ, is that a cashmere iPod cosie? You utter cleft.
short for 'clear left'. In countries that drive on the left side of the road, it is what the passenger (who is sitting in the shotgun seat on the left side of the car) says to a the driver to indicate the way in clear from the left and its safe to procede,