on twitter when people tweet things like "#walkingdead", what does that mean?

[LonelyGothFairy]

like after a person's tweet it will have the number sign # and a word after it, what does that mean and why do they do it

[Justin]

To add context to their post for example..... #DUH

[Karan]

We’ve all seen the #followfriday or #musicmonday memes on Twitter, as well as others every day in the Trending Topics section, but what’s with the little ‘pound’ symbol (#) that they all seem to have?

Those are called hashtags, and they are often misunderstood by new members of the Twitter community. So, what are they exactly? In this article we will take a look at what hashtags are, how to use them, and what they can do for you.

[Albanian]

it is like a tag. for example my tweet is: Happy Thanksgiving! #PEACE

like it goes along and it is also a way to get followers because if you click the tag then there are posts that have the tag (#walkingdead) in them......