Definition of laggers:
(n) :
One who or that which lags behind; a laggard.
(n) :
(video games, informal) A player who lags (has a poor or slow network connection).
(n) :
One who installs lagging.
(n) :
(slang) A police informant.
(n) :
(slang) A sailor.
(n) :
(slang) A member of support staff responsible for contacting lawyers to check how a case is progressing.