The phrase "most peacock" refers to something or someone that is extremely showy, flamboyant or ostentatious. Some synonyms for this phrase include "flashy," "extravagant," "gaudy," "loud," "garish," "brash," "bold," "colorful," "flamboyant," "ostentatious," and "glitzy." These words are often used to describe clothing, accessories, or behaviour that is attention-grabbing and exudes a sense of confidence and flair. Whether it's a stunning peacock feather purse or a loud person at a party, these synonyms capture the essence of being the center of attention and embodying a sense of extravagance and showiness.