going dark, ending communication, or going private with the conversation
Giff, let's finish our lunch plans off-comm...I had a dream last night that 3 guys from the 80's were chasing me looking for their boombox...I'm afraid they might be listening now
by brandonjp May 05, 2008
Abb. An abbrieviation for Offshore Communications
Relating, for example, to oil rigs and ships:"Mike, we gotta get some data back to HQ. What offcomm facilities do we have available to send the information?"
by Gringol April 12, 2011