Top definition
When in the middle of sexual intercourse one excuses themselves in the middle and switches with somebody else who is in or around the room who then finishes in your place. The Dark room switch is done in a dark room to avoid suspicion of changing partners.
When he failed to please his wife john payed a gigolo to do a Dark room switch to trick her into thinking he could satisfy her.
by vurrysorry November 05, 2009
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