'slick up' definitions:

Make neat, smart, or trim; "Spruce up your house for Spring"; "titivate the child" [syn: spruce up, spruce, titivate, tittivate, smarten up, slick up, spiff up]

Dress and groom with particular care, as for a special occasion; "He spruced up for the party" [syn: spruce up, spruce, slick up, smarten up]