A bluejob is like a blowjob, but the but whoever is sucking your dick stops sucking when your about to cum, this resulting in a Blue job, leaving you with “Blue Balls” referring it to a Blue Job.
When the person(s) giving the penile manipulation (oral or otherwise) does not finish as a result of fatigue or other circumstances. This furthers the affliction known commonly as "Blue balls." This word covers the stimulation up to, but not including ejaculation.
Shit, dude, Kirsten gave me a Bluejob last night. I now have the bluest of balls. She said her arms were just too tired to continue.