Derived from the number seven,five and zero. Meaning highly intoxicated under any substance, out of control, something similar to a T-Rex at battle with a dragon.
Also see: 1957 A birth year for people who partied in the 70's. Most all these people did drugs, had sex and listened to rock and roll! A person who was born in nineteen fifty seven, would become 52 in the year 2009.