The Brrr Effect

My wife and I were sitting at he cricket the other day when we heard a resounding "Brrrrrrrrrrrrrrrrrrr!" ring out across the crowd. It was then that I knew the most recent Coke advertising campaign had permeated social culture as the cold drink vendor advertised his product (Coke) to the crowd and the crowd responded with appreciative Brrrrrrr's in return.