Scallop Definition: Scallop Oct 1 2007 • By Fashion 0 2 Scallop Curved, ornamental border on fabric or lace. Found on dresses, tops, skirts and intimates. A rather playful play on textures. Get scalloped in this AKA New York Necklace Dress, $368. For the other kind of scallops, visit Yumsugar!