How exactly did the term hashtag come about and what does it mean?

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#1 Posted by Mister_Mackey (2207 posts) -

I don't use Twitter, but I do watch Conan on TBS, and he always mentions the word hashtag.

What exactly does it mean? And when did it replace the term pound-sign?

#2 Posted by Aljosa23 (24716 posts) -
#3 Posted by Easports48 (1761 posts) -
I try to use Twitter but I get Hacked every single time. Very annoying..
#4 Posted by MrPraline (21308 posts) -
#illuminati
#5 Posted by ghoklebutter (19327 posts) -
#illuminatiMrPraline
fluffy pls come to irc
#6 Posted by MrPraline (21308 posts) -
[QUOTE="MrPraline"]#illuminatighoklebutter
fluffy pls come to irc

#AHMED On my way bro. Just got on.
#7 Posted by ZumaJones07 (16458 posts) -
#tcislame
#8 Posted by wis3boi (31102 posts) -

#firstworldproblems

#9 Posted by MrPraline (21308 posts) -
#occupyOT