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1.
Happens when you have a slow computer. The computer will lag(g) and then freeze and after awhile everything happens VERY fast, or nothing happens..
Most used term on games which require ALOT of FPS.
(Ex. World of Warcraft)
I had a lag(g)spike, that's why I died.

Sorry I was too late tonight, I lag(g)spiked
by LoLWuTxXx August 31, 2010