Letters that make spiff up
s, f, p, i, u are letters that make 'spiff up'
1 possible definitions for 'spiff up'
Under this definition, spiff up is a verb and has the following properties:
titivate, tittivate, spruce up, spruce, slick up, smarten up have the same meaning as 'spiff up'
titivation, tittivation are derivatives of 'spiff up'.