a term used to describe a situation in which any person involved in a blow job (or blowjob) gets a bloody nose.  This term could also be applied to any situation in which blood is involved in any way with the blow job.
"This dude over here just got a blood job.  Check out all of that blood on him. Let us laugh heartily together now."
by Backseat Lover March 3, 2009
 Get the Blood Jobmug.
Get the Blood Jobmug.