John Q. Public is a generic name in the United States to denote a hypothetical member of society deemed a "common man." He is presumed to have no strong political or social biases relevant to whatever topic is at hand, and to represent the randomly selected "man on the street." The equivalent terms are John Q. Citizen and John Q. Taxpayer. Female equivalents include Jane Q. Public, Jane Q. Citizen, … Wikipedia
The definitive Wikipedia entry for John Q. Public. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/John_Q%2e_Public