Top Definition
At M.I.T., Roof and Tunnel Hacking is a pastime in which students break into restricted areas, most commonly the roofs and tunnels of the institute, in order to explore the hidden, often dis-used parts of the campus and to travel covertly between locations. It is never used to steal or damage things, only to explore.
I'm going roof and tunnel hacking tonight. Wanna come?
by Theodore T. Tool January 02, 2005

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