The act of felatio on a male! It came around to replace the line "Blow Job" seeing as 90% of the time there is no act of blowing. It could be referd to as a suck job... but the female does not "suck" persay the majority of the time. She will usually maul the penis like a baby mauls on a pacifier. Hence the term "Pacifier Job" also known as a PJ!
Man, I could really go for a Pacifier Job right now!