Penn needed Fling like a hippie needs drugs and affectionate petting. Today, Fling is the most necessary catharsis in Penn’s bag of traditions. Whether you’re rolling face or rolling with your BFFs, it’s a time for letting go and forgetting. And we at Street think it always will be. Here’s our look at eighty years of history, Penn, and Fling, from 1973 to 2053.