POP JOCK means in slang: A D.J. POP JOKE—A D.J. A DJ who only plays POP, KPOP or J-POP. A person who plays records, spins disks or entertains using Pop media media, such as radio, television, the internet, or live musical events. D.J. POP, K-POP, J-POP, K-MUSIC ddoneun POP eumag man jaesaenghabnida. diseukeureul dolrigo radio, T.V., inteones mic ddoneun raibeu ddoneun nogeum doen eumag ibenteureul wihae pab eumag midieoro nogeummul, eumag maece ddoneun enteoteinmeonteureul jeulgineun saram. (in Slang Dictionary, added by Bennett Garza)