As used in this chapter, the following terms shall have the meanings indicated:
Any agency of federal, state or local government, or any nonprofit organization properly filed with the State of Maryland Department of Assessments and Taxation or recognized as a 501(c)(3) organization by the Internal Revenue Service.
Any privately owned place of business carried on for a profit or any place of amusement or entertainment to which the public is invited.
Any person under the age of 18 years.
Any individual, firm, association, partnership or corporation operating, managing or conducting any establishment; and whenever used in any clause prescribing a penalty, the term "operator," as applied to associations or partnerships, shall include the members or partners thereof and, as applied to corporations, shall include the officers thereof.
Any natural or adoptive parent of a minor, a legal guardian or any person 21 years of age or over legally responsible for the care and custody of a minor.
Any public street, highway, road, alley, park, playground, wharf, dock, public building or vacant lot, as well as church, church ground, library and other such privately owned property used for public purposes.
To loiter, lounge, idle, wander, stroll, sit, or play in or upon.