To not be able to be reached by standard means of communication (i.e. phone / email / txt) for a several hour period.
Bro, what happened to you last weekend, I couldn't track you down. Don't go dark on me again.
sftron가 작성 2008년 01월 09일 (수)
To be outside communication range, especially after hours.
When the response team in Europe go dark, your call will be automatically rerouted to Australasia.
yabbadabba가 작성 2008년 02월 24일 (일)