The false fraternity Pi Tau Zeta, on the second floor of the West Parallel of East Campus (better known as Fred the Dorm) at MIT. Historically, Second West was one of the last all-male halls in East Campus, and they renamed themselves as a pun off of the Yiddish meaning. Today, PTZ is co-ed, one of the more active halls in intramural activities, and notorious for their inflatable body parts displayed during Rush.