The word "大剌剌" is formed by combining the character "大" (meaning "big" or "large") with the reduplicated syllable "剌剌", where "剌" conveys a sense of rudeness or recklessness, and its repetition as "剌剌" creates an adverb describing a bold, unabashed manner. The "大" acts as an intensifier, amplifying the meaning to denote an overtly shameless, conspicuous, or ostentatious way of acting.