A slang term for the male genitals, since there is 3 parts, like a tri-state area.
You mind if I go commando? My tri-state area is experiencing a drought.
by Lexicon Devil August 16, 2008
the three part on a woman's body (boobs and private areas)which the boy friend/husband get once they do it
Your girl friend has a fine tristate area
by p3rv3rted moth3r January 17, 2006