The state of drunkenness when one becomes nearly or completely comatose. His or her appearance resembles a child with down syndrome or Terri (from whence the term is derived). Alcohol poisoning often accompanies a
person when they get this intoxicated.
Black outs and tunnel vision are also related. In order for a
person to reach Shiavoed, they must first become: tipsy, drunk, smashed, hammered, plastered then finally shiavoed.