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1. A public relations "pro" who spends their entire workday posting PR Daily, Mashable and other articles on Twitter (and Facebook...because all "pros" link their Twitter to their Facebook!) without a RT (ReTweet) so as to not give credit.

2. Someone who does not produce anything authentic or original of their own on Twitter and omits mention of the source except for the URL, which is in or tinyurl form.
@"Twitter Jockey" Can you believe this statistic in a recent study? I'm pretending this is my link here!
by I Judge Because I Care March 24, 2011
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