Where you go when you become drunk off alchohol, high off drugs, or stimulated off pills. When you get on the fifth circuit, you may still retain some consciousness but you usually do dumb shit, like jump out of a window or get a shitty tattoo.
"Damn those two drunk latina bitches hit that 5th circuit hard and i had them givin me the much needed love i required."
by Fer-Nando May 21, 2006