lag
PerformanceDefinition
Lag is the colloquial catch-all term for any noticeable delay or inconsistency in a multiplayer game. Lag can be caused by high ping, packet loss, low frame rate, server tick rate problems, or background bandwidth competition. Players often misattribute frame-rate stutters as "lag" when they are actually local performance issues, not network problems.
Example
"The lobby is laggy tonight" — players are experiencing some combination of high ping, packet loss, or low frame rate.