Double Jeopardy

Etymology
Named after an element of the quiz show Jeopardy!, in turn named for the legal concept double jeopardy.

Noun

 * 1) A round of questioning or other situation where the possible gains and/or losses from choices are magnified.
 * 2) * 1988 July, Steven E. de Souza, Die Hard, 20th Century Fox
 * John McClane: Sorry Hans, wrong guess. Would you like to go for Double Jeopardy where the scores can really change?