buff up(redirected from buffing up)
To make a surface (such as metal) smooth by rubbing it so that it shines. A noun can be used between "buff" and "up" or after "up." I buffed up my car so that it would look nice at the wedding.
buff something up
to polish something to a shine. He buffed his shoes up and went out for the evening. He buffed up the antique silver platter.