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Term for person who can't figure out how to turn off the default, often-branded, signature of their email program. Most commonly email applications found on smartphones. Usually something along the lines of: "Sent from my Dingleberry(r) on the Then(c) Network"
example email post from a signatard:

"Hey, guys, i just joined this list, can anyone tell me how to post to it?!!!!!
Sent from my LamePhone(c) on the Douchey Network(r)"
by Chuco the driver January 19, 2011
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