When Julie and Sarah decided to lie to their folks so they could go to the concert neither was allowed to attend, they created a donkeygirl scout mess for themselves.
An act of intimacy where a man puts fresh mint leaves up a woman's butthole and then proceeds to fish them with his tongue. The name derives from the popular 'thin mints' girl scout cookies.
I just plucked fresh mint leaves from my nana's herb garden and then used them to give my woman a dirty girl scout.