1. The process of meeting and seducing married women who are out on errands or other business originally of a non-intimate purpose. This would involve taking married women home who one met spontaneously at a club, grocery store or online at a site that is not focused on dating or sexuality.

2. Havining ones wife sexually taken unexpectedly by another man with no prior planning.
Mrs. Peterson went to the store to get some groceries, but ended up getting wife jacked and found herself in the back of a SUV with some young guy she met in produce.

Doug thought his better half was out running errands but in fact she had met an old friend from college and had unknowingly been wife-jacked.
by TJJ88 July 17, 2009
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This is when your best friend and your wife run off together, or vise versa. Times have changed though and this is no longer a "vigilante" issue. Suck it up folks, adults can date who they want, married or otherwise. This is also known as spouse jacking or hustband jacking; variations include Spouse Burglary, Wife Burglary and Husband Burglary. It's a specific form of cheating or having an affair.
I heard Jen and Cray are splitting up.
Yeah, turns out Jay was Wife Jacking for months!
by Dimmesdale August 30, 2013
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