Cite
 
netlag: n.

[IRC, MUD] A condition that occurs when the delays in the IRC network or on a MUD become severe enough that servers briefly lose and then reestablish contact, causing messages to be delivered in bursts, often with delays of up to a minute. (Note that this term has nothing to do with mainstream “jet lag”, a condition which hackers tend not to be much bothered by.) Often shortened to just ‘lag’.