spiff1[spif]vt.1.■[口语]把…打扮起来,使漂亮;使整洁:Spiff the sitting room with coloured lights.用彩灯将起居室打扮起来。 spiff2[spif]1.■[俚语]n.1.■(特别产品生产商给零售商的)额外红利vt.1.■给(零售商)额外红利