Whats with the "#" sign in Facebook statuses?

[your friend.]

Like, what's it supposed to mean?
For example:

i Have 65....million tattoos, im so lil wayne! All of them are names of my baby's mama...feel me?
hehe
#Playa Playa.

Don’t let you mind wander – it’s far too small to be let out on its own

#BITCHES


Shower flow and then chill time. Sn: Missing some people back home like crazy!
#ALilHomeSick


#musicflow, in my own world, only singing can can take me there.!
SN: im gone smile regardless

Ok, Im digging this Talent Show now!
#ThatGirlCouldBlow!


Yeah you get it.

[Taylor]

Aah, that thing! It's a hashtag, which is originally derived from Twitter and needs to stay on Twitter...lmao I don't know why people do that; sometimes it just irks me. >

[2rickjames7]

Its from twitter, and is telling people what previous post topic you are talking about.

Ex: Im not a hater, but i hate that kid #JustinBeiber

[facebook.com]

Hashtag.
It's a twitter thing people are using in facebook now.

[kayro]

It's a hashtag used on twitter. Now people on facebook use because they think they're cool.