Crackalackin' is a term meaning 'how is it going?' It is derived from the LA gang the Crips. The synonym from the LA gang the Bloods would be 'whats up blood?' Also refers to gang activity as crackalackin'
"Whats crackalackin' cuz?"
"Whats crackalackin' up in here tonight?"
"You know we just been hoppin'(lowrider term) 'round the block crackalackin' dem negros in the red (Bloods)."