rehi

from Jargon File (4.4.4, 14 Aug 2003)
rehi


   [IRC, MUD] "Hello again." Very commonly used to greet people upon
   returning to an IRC channel after {channel hopping}.
    
from The Free On-line Dictionary of Computing (8 July 2008)
rehi

   <chat> Hello again.

   (1995-02-28)
    

[email protected]