When an episode of a show is centered around an advertisement instead of the show itself. Originating from a Smallville episode where a Stride Gum factory was the focus of the episode and the gum was used as a main piece to the story. Another recent example is It's Always Sunny In Philadelphia had an episode centered around a Dave & Busters.
Oh, this is their Stride Gum episode.
by MartiniMan October 07, 2009