Meaning of SPIFF in English

I. ˈspif noun

( -s )

Etymology: perhaps from English dialect spiff, adjective, smartly dressed, dandified

: push money

II. verb

( -ed/-ing/-s )

Etymology: English dialect spiff, adjective

: spruce

time to spiff up a bit before the company arrived

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.