A john (U.S.) or a punter (U.K.) is a male client of a prostitute, particularly in the case of street prostitution. Although these are slang terms, they are used by both prostitutes and police in their respective countries. Johns from the United States prefer to call themselves "'mongers", short for whoremonger, a word that has expanded from its meaning of a pimp or bawd, who dealt in whores as a fishmonger deals in fish, to include anyone keeping the company of whores.
External links
"John Schools" as an attempt to educate prostitutes' clients (http://mpdc.dc.gov/serv/programs/john_school.shtm)
Street prostitution (http://www.cops.usdoj.gov/mime/open.pdf?Item=285) by Michael S. Scott, US DOJ Problem-Oriented Guides for Police Series, No. 2
Sacred prostitution has taken a variety of forms, but in Babylon, ancient historians report that each woman was expected to go to the temple of Aphrodite once in her lifetime to engage in sex with a foreigner as a sign of hospitality.
Prostitution is a global phenomenon: Both male and female sex workers live in every part of the world and on every continent.
Prostitution is currently illegal in the entire U.S. with one exception: It is legal in 10 of Nevada's 17 counties.