Whoopee cushion
A whoopee cushion was an inflatable device used for a practical joke by Humans.  When someone sat down on it, it produced a sound similar to flatulence. 

In 2376, when the The Doctor posed as captain of the  to fend off the Hierarchy and timidly sat down in Voyagers command chair for the first time, Ensign Tom Paris remarked that he would give anything for a whoopee cushion at that time. Ensign Harry Kim was unfamiliar with the whoopee cushion and what it was. Paris replied that it was "ancient technology". ()

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de: Furzkissen
Recreation