Boston Brownie Batter Edit Meaning

1.

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."

See poop, shit, boston, brownies, feces, fecophilia, excrement, fart, gross, nasty, bowl, vomit, face, dirty