something painted (see Karttunen); painted in multiple colors; or, with spots, moles, or freckles; perhaps also a design with squiggly lines, bent, twisted, which is found in hieroglyphs (SW)
See an image that represents cuicuiltic in the Visual Lexicon of Aztec Hieroglyphs, ed. Stephanie Wood (Eugene, Ore.: Wired Humanities, 2020-present).
Cuicuil is a name attested in hieroglyph form in the Matrícula de Huexotzinco. One (f. 526v.), shows a person's head with lots of spots on it: https://aztecglyphs.wired-humanities.org/content/cuicuil-mh526v. Another name Cuicuil appears to be a painting, https://aztecglyphs.wired-humanities.org/content/cuicuil-mh647r. Another name is Tecuicuil, which appears to be a stone, likely painted with multiple colors, https://aztecglyphs.wired-humanities.org/content/tecuicuil-mh647v.
chiencuicuiltic = chia-spotted, a description of the wings of quail.