An internet phenomenon associated with the '/b/' random section of the 4chan imageboard. The users of this section anonymously logged onto Habbo Hotel, and using avatars of black people clothed in suits, along with a large afro, blockaded the Hotel's pool from entry while shouting 'Pools closed' to users trying to enter.
The phenomenon has since increased in popularity, and the GNAA and myg0t trolling communities have also started to participate in the blockades.
Habbo Hotel User: 'Let me in the pool, you!'
/b/ user: 'Pools closed!'
The ultimate lulz. African American males with extremely large afros block the pedophilic doorways of habbo hotel, especially the pool.
47 year old male trying to get to the 13 year old male on the other side of the /b/ user: You dam troll let me in the pool!
/b/ user: Pools Closed