![1girl animal_ears artoria_pendragon_(all) artoria_pendragon_(swimsuit_ruler)_(fate) bangs bare_shoulders blonde_hair blue_legwear braid breasts bunny_ears bunny_girl bunnysuit cleavage collarbone commentary_request detached_collar eyebrows_visible_through_hair fate/grand_order fate_(series) fishnets hair_between_eyes highres hiyoko_(kokeko) large_breasts leotard long_hair looking_at_viewer pantyhose ponytail sidelocks simple_background solo white_background white_leotard wrist_cuffs yellow_eyes rating:s score:13 post #3831318](/cdn_image/preview/70/d8/70d89c2d6d85dac8046fcc1bf2c60031.jpg)
A "bunny girl" generally refers to a Japanese term given to a Playboy bunny, especially one who wears a bunnysuit.
But some images having this tag do not refer to the Playboy bunny, but simply a female human or anthromorph having rabbit ears, but not necessarily the other elements of the Playboy bunny.