Top definition
when on nex, facebook, instant messenger or anything of that sort you reply to a msg and they reply back instaniously.(ex, you send it, click to refresh page and their reply is waiting for you. creepy. i know)

it oftens gives the impression that they are just sitting there refreshing the page waiting for you to reply.
woaaah, erin just insta-replied. what a loser.

omg, k get a life.
by --devan** November 27, 2007
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