Univ. of Wyoming Sorority Sisters' Lawsuit Over Transgender Member Tossed

Sorority sisters who were trying to have a transgender woman booted from their org just got gut-checked in court -- 'cause a judge tossed their lawsuit -- saying the court had no business telling the sorority how to define "woman."

U.S. District Judge Alan Johnson dismissed the complaint filed by 7 members of the University of Wyoming's Kappa Kappa Gamma chapter -- who sued their own sorority earlier this year for allowing 21-year-old Artemis Langford, who's trans, to join their ranks in recent months.

The reason, per court docs obtained by TMZ ... the court says it has no right to intrude on how the chapter defined "woman" for the purposes of admitting prospective members. The judge found Kappa Kappa Gamma clearly felt Langford was qualified to join when it voted her in ... and going back to disqualify that now is out of bounds.

Judge Johnson breaks it down like this ... "The delegate of a private, voluntary organization interpreted ‘woman,’ otherwise undefined in the nonprofit’s bylaws, expansively; this Judge may not invade Kappa Kappa Gamma’s freedom of expressive association and inject the circumscribed definition Plaintiffs urge."

In other words, the judge is saying this is an issue Kappa Kappa Gamma dealt with in-house -- and it was inappropriate for a court to interfere.

As for how Langford feels about this latest development ... her attorney, Rachel Berkness, told AP the claims never should've made it into a legal filing to begin with -- so, it sounds like her client is happy.

The sorority sisters who brought this before hizzoner alleged Langford -- who's described as 6'2" and 260 lbs., and with male genitalia -- would get sexually aroused around the women within the house. The sisters claimed they were living in constant fear with her around.