MIT hackers hung a large bomber silhouette with the letters ‘DTYD’ in the middle of Lobby 7 on the morning of April 18. The letters refer to the large annual party of the same name. Alex H. Chan—The Tech May. 9, 2016 Facebook Twitter Reddit Print MIT hackers hung a large bomber silhouette with the letters ‘DTYD’ in the middle of Lobby 7 on the morning of April 18. The letters refer to the large annual party of the same name. Alex H. Chan—The Tech