on Facebook, a trusted friend you ask (as a favor to you) to say hello- or send any other messages- on your behalf to another Facebook user who either deleted their account or doesn't want to talk to you on Facebook.
My friend Steven actually invented the phrase Facebook communication vessel when I asked him to say hello on my behalf to another common friend of ours who didn't want to talk to me and Steven refused.
by Sexydimma October 3, 2013