Incredibly foul smelling discharge from a dog's anal sac which has been weaponized by applying said secretion to a piece of fabric or furniture and placing the annointed fabric or furniture in the victims car/office/bedroom. Otherwise known as WBJ.
Yo, Edie is in the bathroom ralphing up lunch. What's up with that?
Someone put Weaponized Butt Juice on her kerchief and when she went to blow her nose she got too big of a whiff.
After sitting with the small pug in her lap for a few hours Mandy was horrified to see two small dark stains of Butt Juice on her favorite sweats.
Mandy barfed in to the washing machine after removing her sweats and instead of placing the soiled sweats in to the machine she weaponized the butt juice by sticking the sweats in the pug's owners bed.