Butt weap 

Sweating of the butt crack and butthole area

I had such major butt weap, I had to wipe my ass with a baby wipe.

Butt weap by Lilwhimpy June 1, 2018

Weaponized Butt Juice 

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.

Weaponized Butt Juice by The Urban Lenny February 23, 2009