Pingpong rhymes with:
adlong, berrong, bogelsong, boipatong, bushong, deshong, diphthong, dishong, dulong, ewong, foglesong, ganong, groshong, haifong, hartong, herlong, hindelong, hongkong, hopalong, nifong, oblong, oolong, shiong, susong, vogelsong, wilfong, wiltfong, wysong