Generally frequenting means to associate with, be in, or resort to often or habitually. In Oregon frequenting a place where controlled substances are used is a Class A misdemeanor.
ORS § 167.222 dealing with offenses involving controlled substances states:
(1) A person commits the offense of frequenting a place where controlled substances are used if the person keeps, maintains, frequents, or remains at a place, while knowingly permitting persons to use controlled substances in such place or to keep or sell them in violation of ORS 475.005 to 475.285 and 475.840 to 475.980.
(2) Frequenting a place where controlled substances are used is a Class A misdemeanor.
(3) Notwithstanding subsection (2) of this section, if the conviction is for knowingly maintaining, frequenting or remaining at a place where less than one avoirdupois ounce of the dried leaves, stems, and flowers of the plant Cannabis family Moraceae is found at the time of the offense under this section, frequenting a place where controlled substances are used is a Class D violation.
(4) As used in this section, "frequents" means repeatedly or habitually visits, goes to or resorts to.
Examples of some statutes on Oregon using the term Frequenting
ORS § 105.565 states
On the issue of whether property is used in violation of ORS 105.555, evidence of its general reputation and the reputation of persons residing in or frequenting it shall be admissible.
ORS § 659A.403: Discrimination in place of public accommodation prohibited.
(1) Except as provided in subsection (2) of this section, all persons within the jurisdiction of this state are entitled to the full and equal accommodations, advantages, facilities and privileges of any place of public accommodation, without any distinction, discrimination or restriction on account of race, religion, sex, marital status, color, national origin or age if the individual is 18 years of age or older.
(2) Subsection (1) of this section does not prohibit:
(a) The enforcement of laws governing the consumption of alcoholic beverages by minors and the frequenting by minors of places of public accommodation where alcoholic beverages are served; or
(b) The offering of special rates or services to persons 50 years of age or older.
(3) It is an unlawful practice for any person to deny full and equal accommodations, advantages, facilities and privileges of any place of public accommodation in violation of this section.