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The trope is about using teeth in combat when everything else is unavailable. If you don't see some examples you can just (with full detail) add them.
TroperWall / WikiMagic CleanupAs Amonimous said, the precise gender or other personal details of the biter are not in themselves relevant for the trope, which is concerned with someone using teeth as a desperate or improvised last-resort weapon. A woman biting a woman (or a boy biting a girl, or a girl biting a man, or an elf biting a dwarf, or whatever) is a perfectly valid example, and if you have such you are free to just add them to the page.
Edited by Theriocephalus

Woman bites woman
A variation of man bites man. Not many examples on that thread.
I found a few examples for movies:
The heroine and villain both bite each other in Friday the 13th (1980)
Christina Applegate bites Cameron Diaz's foot in The Sweetest Thing (2002).
Kiele Sanchez bites Milla Jovovich's wrist to free herself in A Perfect Getaway(2009)
Neve Campbell bites Hannah Quinlivan's hand to free herself in Skyscraper (2018).
For Live Action TV shows:
Mary Louise Parker bites Tonye Patano's hand in a brief fight in Weeds(2005)
Jaime Pressly bites Juliette Lewis' wrist in a brief fight in My Name is Earl (2005).