Opera hat characteristic snapping sound heard upon opening a gibus suggested a third name, the "chapeau claque", "claque" being the French word for "slap". Opera hat An opera hat, also called a chapeau claque or gibus, is a top hat variant that is collapsible through a spring system, originally intended for less spacious venues, such as theatre and opera visits. Typically made of satin in black colour, its advantage is that it folds vertically through a push or a snap on the top of the hat, in order to be conveniently stored in a wardrobe or under the seat. Invertably, it opens
Top hat Exchange that required the wearing of a top hat in the streets of the City of London was abolished by the "Big Bang" reforms of October 1986. In the British House of Commons, a rule requiring a Member of Parliament who wished to raise a point of order during a division, having to speak seated with a top hat on, was abolished in 1998. Spare top hats were kept in the chamber in case they were needed. The Modernisation Select Committee commented that "This particular practice has almost certainly brought the House into greater ridicule than almost any other". Although