What is "knock knock"

interj. 1 (context colloquial often childish English) A phrase used to introduce a "knock knock joke" 2 (context colloquial often childish English) A phrase used in lieu of knocking (e.g. on the door), when it is not possible to knock. n. knock-knock joke

Knock Knock is a 1940 animated short subject, part of the Andy Panda series, produced by Walter Lantz. The cartoon is noted for being the first appearance of Woody Woodpecker, and was released by Universal Pictures on November 25, 1940.

"Knock Knock" is a song by American recording artist Monica, taken from her fourth studio album After the Storm (2003). It was written and produced by rapper-producer Missy Elliott and commissioned following the delay and subsequent reconstruction of Monica's 2002 album, All Eyez on Me. One out of a handful of tracks which Elliott contributed, the song incorporates elements of 1970s-style soul and quiet storm, as well as hip hop, and is built around excerpts of the record "It's a Terrible Thing to Waste Your Love" as written by Lee Hatim and released by The Masqueraders in 1976. Rapper Kanye West, whose 2005 Freshmen Adjustment mixtape recording "Apologize" the track is based on, is listed as the song's co-producer.

J Records released "Knock Knock", alongside fellow Elliott production " Get It Off," as one of two singles following leading single " So Gone" during the third quarter of 2003. The song was lauded by critics, who praised its streetwise production and Monica's rap part on the track. A moderate success at the charts, it peaked at number 75 on the US Billboard Hot 100 and number 24 on the Hot R&B/Hip-Hop Songs chart. Its accompanying music video, directed by Chris Robinson, was filmed as a two-part story with "So Gone".

Knock Knock is the seventh album by Bill Callahan (also known as Smog), released in January 1999 on Drag City and by Domino in Europe. The album is the fourth and final collaboration with the producer and musician Jim O'Rourke. Knock Knock elaborates Callahan's sound and provides twists and edges to the folky style of its predecessor. " Held" was the first single, followed by " Cold Blooded Old Times", which later appeared on the High Fidelity film soundtrack, thereby attracting some attention to Callahan's work. Other soundtrack appearances include "Teenage Spaceship" in Crazy (2000, directed by Hans-Christian Schmid) and "Hit the Ground Running" in Swimming (2000, directed by Robert J. Siegel). The album was accompanied by the release of the single " Look Now", with the two Japanese bonus tracks.

Loren Mazzacane Connors plays guitar on "Teenage Spaceship" and"Sweet Treat", Thymme Jones plays drums, Jim O'Rourke plays piano and "Wurley" plays guitar.

Callahan has said the cover is a reference to "two zen tenets - that of life being like a flash of lightning or a wildcat's roar" (Smog interview in Ink Blot magazine), though others have speculated that it is a reference to Cat Power, who had been in a relationship with Callahan immediately prior to the writing of the album.

Knock Knock may refer to:

• Knock-knock joke, a type of joke

Knock Knock is a horror film released in 2007. It was filmed in Monsignor Farrell High School located in Staten Island, New York. The story involves a group of teens being killed in a manner somehow associated with their parents' careers while a female detective and retired beat cop fumble around trying to catch the killer.

Knock Knock is a book publisher and gift product company founded by Jen Bilik on January 1, 2002. The company is based in Venice, California.

Knock Knock is a 2015 American erotic horror thriller film directed by Eli Roth, who also co-wrote the script with Guillermo Amoedo and Nicolás López. The film stars Keanu Reeves, Lorenza Izzo, and Ana de Armas. The film was released on October 9, 2015, by Lionsgate Premiere, and it is a remake of Peter Traynor's 1977 film Death Game.

Knock Knock is a play written by American author, cartoonist and playwright Jules Feiffer. It is a comedy, and was produced on Broadway in 1976, where it earned Tony Award nominations including Best Play.