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An orgasm caused by watching the show LOST.
God last weeks episode of LOST game me such a lostgasm that I woke up my neighbors.

lost orgasm abc dharma tv
by JMILLZ22 February 02, 2010
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The overwhelming feeling of ecstacy/amazement after watching an episode of Lost, the new hit show on ABC. It is often experienced after an especially plot twisting episode.
Did you see last weeks episode of Lost? Total Lostgasm!!
by Carwheel88 April 18, 2006
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