If you were born after July 1, 1974, it is illegal for anyone to call you ‘illegitimate’ or ‘bastard’. the state legislature says that free speech rights do not extend to the freedom to describe a person pertaining to their lineage using those to terms.
§10-6.5. Use of certain words in reference to children born out of wedlock prohibited.A. On and after the date upon which this act becomes operative, the designations “illegitimate” or “bastard” shall not be used to designate a child born out of wedlock.
B. No person, firm, corporation, agency, organization, the State of Oklahoma nor any of its agencies, boards, commission officers or political subdivisions, nor any hospital, nor any institution supported by public funds, nor any employee of any of the above, shall use the term “illegitimate” or “bastard” in referring to or designating any child born on or after the operative date of this act.Laws 1974, c. 297, § 1, operative July 1, 1974.
It's Still the Law, In Oklahoma
A chronicle of laws you still have to obey, in the Sooner State.