look up any word, like donkey punch:
 
1.
when a woman gives a man a blow job and while he is finishing, she licks the eye of his penis with her tongue very quickly smearing the cum all over and most likely getting it on her face.
man, I gave a dirty BJ to my boss in his office! He loved especailly when I got cum on my face when I quickly licked the tip while he was cumming
by bj's favorite July 04, 2011
 
2.
When a male get feces on his penis, then a female gives him a blowjob.
Nicole gave Scott a Dirty bj
by H0rr1d September 17, 2008