I listen to the radio quite often in the car, and one thing that really bugs me are the morons that don't know how to use the phrase 'straight up', as in, it's straight up 12 o'clock, meaning that the hands on the clock are all pointing up.
Of course, when clock went digital and people forgot what those little hands meant, suddenly 'straight up' was any old hour of the day. Now it seems that this phrase must mean 'exactly', because I heard that it was 'straight up 5:30' on the drive home. But then, these are usually FM DJs, so I really don't expect a lot of intelligence out of them.