A girl or guy who is an excessive oral sex giver and that may take money for his or her deeds or not.
That girl is such a brain job.
The act of getting a brain freeze from a slushie, while getting a blow job.
Dude, my girl totally gave me a brain job last night
The act of getting a brain freeze during a blowjob
hey, baby wanna give me a brain job
When someone blows your mind.
Person 1: "Yeah frank works at McDonalds now."
Person 2: "Didn't he graduate from medical school like 2 years ago?"
Person 1: "Yeah, but the whole divorce thing..."
Person 2: "Wow you just gave me a brainjob."