lagger

n. police informer

The La Grange Road Amtrak station is a train station in La Grange, Illinois, United States served by Amtrak, the national railroad passenger system. It is also one of two Metra stations serving the BNSF Railway commuter line in La Grange. The other is best known as La Grange-Stone Avenue.
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In computing and especially computer networks, a lag is a symptom where result of an action appears later than expected. While different kinds of latency are well defined technical terms, lag is the symptom, not the cause.Communications latency is the time taken for a packet of data to be sent from one application, travel to, and be received by another application. This includes transit time over the network, and processing time at the source and the destination computers. Specifically, this is the time for encoding the packet for transmission and transmitting it, the time for that serial data to traverse the network equipment between the nodes, and the time to get the data off the circuit. This is also known as "one-way latency". A minimum bound on latency is determined by the distance between communicating devices and the speed at which the signal propagates in the circuits (typically 70-95% of the speed of light). Actual latency is much higher, due to packet processing in networking equipment, and other traffic.
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Noun
1. someone who takes more time than necessary; someone who lags behind
(synonym) dawdler, drone, laggard, trailer
(hypernym) idler, loafer, do-nothing, layabout, bum
(hyponym) loiterer, lingerer
(derivation) lag, dawdle, fall back, fall behind

(n.)
A laggard.
  

      gargle