1 definition by historyfans

A phenomenon observed when a regular character in a television series leaves with no explanation, and is never referred to again despite the character's previous importance either to the show or to the other characters. This is derived from a Happy Days character who was Richie's older brother for the first two seasons
Writers should avoid using the Chuck Cunningham Syndrome.
by historyfans July 9, 2014
Get the Chuck Cunningham Syndrome mug.