The phrase "big bow" refers to a large and prominent bow, which is a decorative knot made from ribbon or fabric that is commonly used for wrapping gifts or adorning hair or clothing. Full definition
I just think big bows, lace and tulle are so romantic! (lovelyyoublog.com)
Dying over the, «I like girls with big bows!» (emilyaclark.com)
I found myself surrounded by crimson and war eagle, monograms, and big bows on all these little kids, smocks, pearls, wallabees, and a lot of color. (inaworldofbees.com)