A trapdoor is a door set into a floor or ceiling (depending on what side of the door one is on). An exposed trapdoor could also be called a hatch, although hatches may not be necessarily horizontal. Many buildings with flat roofs have hatches that provide access to the roof; on ships, hatches provide access to the deck. A small door in a wall, floor or ceiling used to gain access to equipment is called an access hatch. Hidden trapdoors occasionally appear in fiction, either as entrances to secret passageways, or as literal traps into which a hapless pedestrian may fall if he or she happens to stand on one.

Most 19th and 20th century gallows featured a trapdoor, usually with two flaps. The victim was placed at the join.The edge of a trapdoor farthest from the hinge accelerates faster than gravity, so that the victim does not hit the flaps but falls freely

The word "trapdoor" or simply "trappies" can be used as an expression of dismay or defeat, in an acknowledgment that something has not gone to plan, or that someone has committed a schoolboy error of some kind, eg. leaving English to go and play mini-soccer. It is generally accompanied by a hand gesture and an exclamation of "trappies" in a sneering and obnoxious surf-voice.

ee also

* Trap

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  • Trapdoor — Trap door , n. 1. (Arch.) A lifting or sliding door covering an opening in a roof or floor. [1913 Webster] 2. (Mining) A door in a level for regulating the ventilating current; called also {weather door}. Raymond. [1913 Webster] {Trapdoor spider} …   The Collaborative International Dictionary of English

  • trapdoor — ► NOUN ▪ a hinged or removable panel in a floor, ceiling, or roof …   English terms dictionary

  • trapdoor — [trap′dôr΄] n. a hinged or sliding door in a roof, ceiling, or floor …   English World dictionary

  • trapdoor — UK [ˈtræpˌdɔː(r)] / US [ˈtræpˌdɔr] noun [countable] Word forms trapdoor : singular trapdoor plural trapdoors a small door that covers an opening in a floor, ceiling, or wall …   English dictionary

  • trapdoor — n. a door or hatch in a floor, ceiling, or roof, usu. made flush with the surface. Phrases and idioms: trapdoor spider any of various spiders, esp. of the family Ctenizidae, that make a hinged trapdoor at the top of their nest …   Useful english dictionary

  • Trapdoor — Backdoor (auch Trapdoor oder Hintertür) bezeichnet einen (oft vom Autor eingebauten) Teil einer Software, der es Benutzern ermöglicht, unter Umgehung der normalen Zugriffssicherung Zugang zum Computer oder einer sonst geschützten Funktion eines… …   Deutsch Wikipedia

  • trapdoor — /trap dawr , dohr /, n. 1. a door flush with the surface of a floor, ceiling, or roof. 2. the opening that it covers. adj. 3. of, pertaining to, or like a trapdoor. [1325 75; ME trappe dore. See TRAP1, DOOR] * * * …   Universalium

  • trapdoor — [[t]træ̱pdɔ͟ː(r)[/t]] trapdoors also trap door N COUNT A trapdoor is a small horizontal door in a floor, a ceiling, or on a stage …   English dictionary

  • trapdoor — užpakalinės durys statusas T sritis informatika apibrėžtis Vieta, pro kurią galima patekti į programinės arba aparatinės įrangos vidų, ir priemonės tam padaryti apeinant ↑saugumo priemones. Programuotojai dažnai palieka užpakalines duris klaidų… …   Enciklopedinis kompiuterijos žodynas

  • trapdoor — noun Date: 14th century a lifting or sliding door covering an opening (as in a roof, ceiling, or floor) …   New Collegiate Dictionary