Pooping in a clear glass bowl while it is over someone's face, giving them a view of the process and the resulting bowl of "brownie batter."
"Theresa showed up to the prom with a large glass bowl in the limo. I knew she was planning to give me some boston brownie batter later in the evening, and I just wasn't looking forward to it as much as she was."
by jackirose January 28, 2009
The act of baking up a poo in the bowels and exploding it into the gaping anus of a small cat or dog preferably a boston terrier.
I walked to the shop and on route I spotted a boston terrier tied to a fence, i boston brownied it then carried on for my bread and milk.
by Boston brownie king June 12, 2021