LOS ANGELES (AP) _ Heavy metal singer-songwriter Ozzy Osbourne said Tuesday that his songs about suicide and paranoia have been grossly misinterpreted by the parents of a teen-ager who killed himself after listening to Osbourne's ''Suicide Solution.''

''The song wasn't written for suicide. It was anti-suicide,'' Osbourne said at a news conference. ''It was about a friend of mine who killed himself on alcohol and drugs. 'Suicide Solution,' meaning solution as a liquid, not as a solution to the way out.''

Osbourne, 37, identified the friend as Bon Scott of the Australian heavy metal group, AC-DC. Scott died in London of acute alcohol poisoning in February 1980.

Osbourne's lawyer, Howard Weitzman, read a statement attacking the lawsuit filed in October by the parents of John Daniel McCollum, 19. The Indio, Calif., youth shot himself to death Oct. 27, 1984, while listening to ''Suicide Solution.''

Osbourne, a British singer, was with the heavy metal group Black Sabbath before his solo career. He has been the subject of protest because of reports he once bit the head off a bat while on stage, and urinated on the Alamo before a performance in San Antonio. Memphis police arrested him for public drunkenness in May 1984.

He was sued by Jack McCollum and Geraldine Lugenbuehl, who claimed their son followed the lyrics to ''Suicide Solution'' from ''The Blizzard of Oz'' LP. They did not state in the lawsuit how much money they wanted, saying their real goal was to attack music lyrics about sex, death, suicide and drugs.

The lawsuit, filed in Riverside County Superior Court, also names Osbourne's label, CBS Records, as a defendant. CBS has declined comment.

Weitzman noted that the publicity campaign by the family began earlier this month, more than a year after the young man's death. He suggested the lawsuit might be part of a campaign to attack and control the lyrics of rock music.

A number of people appeared before a congressional committee last year, arguing that records with violent or obscene lyrics should be rated for children in much the same manner as movies.

In response to the pressure, the Record Industry Association of America agreed to label some albums with the warning ''Explicit Lyrics - Parental Advisory,'' or to print the lyrics on the jacket. Twenty-two of the 44 companies that belong to the group accepted the idea, although musicians who have artistic control over album jackets are free to ignore the agreement.

''Is the McCollum family actually the motivating force behind the lawsuit, or is their financial and moral support being given from other segments of society that believe they can dictate the moral and philosophical attitudes of the public?'' Weitzman asked.

''The logical extension of this suit is censorship, of a type which is strictly prohibited by the First Amendment of the United States Constitution,'' Weitzman said.

Chickie Kleiner, a spokeswoman hired by the family, was not at her office in Palm Springs when contacted for comment.

Osbourne said interpretations of his song ''Paranoid'' by the parents and their lawyer, Thomas Anderson, were incorrect on several points.

He said the line ''Can You Help Me? Oh, shoot my brains out'' is ''absolutely not in the song,'' and also said another line actually reads ''I tell you to enjoy life,'' but was interpreted as ''I tell you to end your life.''

Osbourne said the song was done by Black Sabbath in 1970 and was not on the ''Blizzard of Oz'' LP.