To make someone, something, or oneself appear more visually attractive or appealing. A noun or pronoun can be used between "primp" and "up." My sisters wanted to primp me up for my date, but I told them I was happy with how I looked. The real estate agent wants us to primp up the house a bit before we put it on the market. She said she wanted to primp herself up before going out, but she's been in there for nearly an hour.