A term from Scotland. An idiot talking rubbish. Baws-testicles.
"Shut it Baw Jaws", "Away you n' boil yer heed baw jaws"
Someone who enjoys, or takes part in, the insertion of testicles into their facial recepticle.
i.e my baws, your mouth
Someone who is acting like a fanny or a retard and deserves to be verbally abused or a greeting used between close friends.
"What are ya doing ya absolute baw jaw!"
"Oright there baw jaw."