The point at which a relationship with a friend has reached its highest point, and begins its terminal decline. Usually occurs after having too much of a good time, which results in you spending less and less time with the person, eventually leading to you totally losing contact with the person.
After having such an awesome time out drinking and partying last night, James and Ryan's friendship has peaked and begun its terminal decline. Peak friendship in action.
by navy1291 July 21, 2008