Top definition
When one Comments or Likes a post up to 2 seconds after its posted. (On Facebook.)

WARNING: This action can get very annoying for the person recieving the notifications.
Girl 1: Oh man, I was on Facebook last night, and this guy is TOTALLY ninja-commenting / liking everything I post! SOO annoying.

Girl 2: Oh jees. That sucks...
by LoLfAcEbOoKfTw October 19, 2009
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