y'all best break y'all selves 

Warning to children or other misbehaving persons to behave in public. Contrary to previously attributed gangsta use, it's what your Grandma would say if you and your cousins were acting up outside your own house or backyard, even if you were only in the front yard. Short for "Y'all best break y'all selves of actin' out, before I break you of embarrasin' me in public." Complimentary phrase might be "Ah'mo (I'm going to) take you right out this world and tell God the gators got you."

"We at the courthouse, y'all best break y'all selves while I pick up these license plates."

y'all best break y'all selves by Y'alls Auntie, the MEAN one September 8, 2008

y'all best break y'all selves 

Warning to children or other misbehaving persons to behave in public. Contrary to previously attributed gangsta use, it's what your Grandma would say if you and your cousins were acting up outside your own house or backyard, even if you were only in the front yard. Short for "Y'all best break y'all selves of actin' out, before I break you of embarrasin' me in public." Complimentary phrase might be "Ah'mo (I'm going to) take you right out this world and tell God the gators got you."

"We at the courthouse, y'all best break y'all selves while I pick up these license plates."

y'all best break y'all selves by Y'alls Auntie, the MEAN one July 25, 2006

y'all best break y'all selves 

gangster jibberish (has no meaning)
use it to sound like a gangster

Y'all best break y'all selves

y'all best break y'all selves by Rosh April 20, 2003