AMBF (Asian Male Black Female), AMBW, AM/BW, and Asian man with black woman refers in porn to an Asian man who has sex with a black woman.
There is also AFBF, AFBM, AFLF, AFLM, AFWF, AFWM, AMLF, AMWF, BFLF, BFLM, BFWF, BFWM, BMLF, BMWF, LFWF, LFWM, and LMWF, among others.