The phrase "brief drug references" refers to a brief mention or allusion to drugs in a text, such as a book, movie, song lyrics, or other form of media. Full definition
MPAA Rated: PG - 13 for language, sexual content, and brief drug references Running Time: 102 min. (qwipster.net)
Despite the PG rating, this film briefly (but heavily) implies teens are partaking of illegal drugs, and contains cigarettes (a brief shot shows a smoke smoldering in an ashtray) and alcohol use as well as brief drug references. (parentpreviews.com)
MPAA Rated: PG - 13 for frequent crude and sexual humor, drinking and brief drug references Running Time: 76 min. (qwipster.net)