A "beach coverup" is a loose article of clothing that you wear over your swimsuit at the beach to provide a little extra coverage and protection. Full definition
I packed the BEST I ever have this trip (even Raja said it) and ended up rewearing a ton of my dresses that I brought for dinners during the day and as beach coverups. (ohsoglam.com)
Sexy bodycon beach coverup dress features a mini length, a apron collarline, silver thread detailing and a strappy open back, unlined. (zaful.com)
It's perfect for lounging and would make the best beach coverup! (mlovesm.com)