spiff something up
to polish and groom something very well; to make something clean and tidy. See if you can spiff this place up a little. I will spiff up the room a little.
spiffed out
Sl. to be dressed in one's finest clothes and well-groomed. He got himself all spiffed out for the wedding reception. Man, are you ever spiffed out!
spiffed up
dressed up, groomed, and polished up nicely; clean and tidy. See if you can get yourself a little spiffed up before we go out to dinner. We wouldn't want the Wilmington-Thorpes to think you only have one suit. The house doesn't have to be too spiffed up for the Franklins. They are used to clutter.