Ham

Origin
This joke originated from a daily stream of Episode 5 of the Disaster: Day of Crisis playthrough, when Haunted wrote "Ham Gun" when he meant to type Hand Gun. Castiel then proceeded to turn Haunted's mistake into an Infomercial, giving birth to the joke's template: "''X? Ham." But not only is Ham used on this sentence, it is also used to replace a word of the title of a videogame, a movie, or an anime/manga.''

For More Examples
Go Here, Here or Here