The area code for Palm Beach, FL. The '561' is where the middle class to rich people live, while ghetto* people live in 'The fitty sicks ace nikkah!" near Tamarind.
*Ghetto people does not include chongas. Chongas live in the mall, hoes.
"Where you at?" "The 561, biotcchhhh!" -Ghetto
"Where are you?" "The fitty sicks ace. Im white. I dont belong here, pick me up!!!!"