Clapper

• Clappers (record label), a New York-based reggae label
• "Clappers" (song), a 2013 song by Wale
• The Clapper (film), a 2017 American comedy film

• Clapper, Missouri, a community in the United States
• Clappers, Scottish Borders, a small village in Scottish Borders, United Kingdom
• The Clappers, a footbridge across Caversham Lock in Reading, United Kingdom

• Billy Clapper (born 1982), American basketball coach
• James Clapper (born 1941), former Director of National Intelligence of the United States
• Clapper, a character in the video game Donkey Kong Country 2: Diddy's Kong Quest

• Clapper, part of a bell
• Clapper (musical instrument), consisting of two pieces of wood struck together
• Clapper bridge, an ancient form of bridge
• Clapper Post, urban postal service in 18th century Vienna
• Clapperboard, used in film production to aid synchronizing audio and video and to identify different shots
• The Clapper, a sound activated electrical switch
• Clapper (service), a social networking service

• ACLU v. Clapper, a lawsuit involving the American Civil Liberties Union
• Clapper v. Amnesty International USA, a United States Supreme Court case

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