i think it can mean different things for different people...for me it would be the drive home from the beach, i always feel so dirty after the beach!! for chamillion probably drugs, weapons, or he just left the gym and he is all sweaty.
I agree with Julie. I think it would mean different things to different people. For me I think it means that he/she may be caught doing something maybe they shouldn't be doing. Something a little risky, if you know what I mean!