What does 'Lockerz' mean on Twitter?

[Max]

I'm new to Twitter and I have noticed that when I view one of someone's pictures sometimes it will say 'Lockerz' at the bottom in the sub text.
What does it mean? What does it do? almost everyone's photos say that at the bottom. Dafuq?

[Tengo Tengo]

lockerz was free prizes site in past now it is fake

[Jess]

It's a website that can post pictures onto twitter, there are quite a few that you'll probably see such as instagram, twitpic and lockerz! Hope this has helped in anyway.