noun
also john q. or john q. citizen
Usage: usually capitalized J&Q&P&C
Etymology: from the name John + the initial Q. + public or citizen
1. : a member of the public or the community : person , citizen
just another John Q. Citizen on the road — Springfield (Massachusetts) Union
2. : the public or the community personified
Mr. and Mrs. John Q. Public suffered no great deprivations — Domestic Commerce