I've heard "Shotty" from my sister, which is supposadly the new "Cool", and "Shotty Not" being the "Uncool".
Aside from that, we've got;
Pokey: Employment Insurance ("He's on the Pokey")
Numpty: Someone unqualified, inexperienced, or lacking mental fortitude. Usually reserved for slow-learning new employees. ("Send a numpty to get it, I'm busy")
Fung: F'ing New Guy. Usually these evolve into Numpties before reaching the final stage of Wage Slave.
Gangnam Style: Op Op Op, Oppa Gangnam Style!~
Shotty derived from Shawty, which means "Woman" from Shorty because women are short see. obviously.