The word "guyer" can refer to someone who dresses up in flamboyant or outlandish clothing as part of cultural celebrations, festivals, or parades. Synonyms for "guyer" include masquerader, reveler, partygoer, costumed participant, and fancy dresser. These terms evoke the sense of playfulness and festive spirit that is often associated with a guyer. Moreover, the word "guyer" can be used as a verb meaning to dress up in costume, and synonyms for this usage would include to masquerade, to disguise, to dress up, and to play dress-up. These words can help capture the sense of whimsy and lightheartedness that comes with donning a festive costume.