White cup is a term sometimes used to replace "
Purple Drank or Lean." A drink popular in the south that consists of Codine cough syrup and Promethazine mixed with a soda or fruit juice.
White Cup can also be used in reference to drinking "Purple Drank or Lean."
"
What be your favorite drink crip." Shit you know I drink that
White Cup boy!
"Yo crip, what you got in dat cup you be
sippin on?" Nigga can't you see dat is a White Cup!?
