girl-on-girl crime
(noun) Any transgression, of varying degree, perpetrated by one female or group of females against another.
"There's been some girl-on-girl crime here."
-Ms. Norbury, in the 2004 film 'Mean Girls', reacting to a high school culture in which cliques, rumormongering and deceit have fractured the female population.
-Ms. Norbury, in the 2004 film 'Mean Girls', reacting to a high school culture in which cliques, rumormongering and deceit have fractured the female population.