eating one's own

Verb

eat one's own (third-person singular simple present eats one's own, present participle eating one's own, simple past ate one's own, past participle eaten one's own)

1. (idiomatic) To turn on and attack members of one's own group or clique.
   • So, in a way, they sat back and watched liberals eat their own—they watched as just deserts advocates undermined the legitimacy of rehabilitation in a way they never could have.2016, Francis T. Cullen, Cheryl Lero Jonson, Correctional Theory: Context and Consequences