Pronunciation: (spif), [key]
to make spiffy (usually fol. by up): Let's spiff up this office with new furniture.
Pronunciation: (spif), [key] Slang.
a bonus or other form of remuneration given to retail salespeople for promoting the products of a particular manufacturer.
to reward (a salesperson) with a spiff.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.