Wiktionary
tailbones
n. (plural of tailbone English)
Usage examples of "tailbones".
She was grateful for her choice, feeling her tailbones where she had lost her saddle calluses.
Is that water leaking from your eyes, or whalebones, or tailbones, or baseballs, or mothballs, or dictionaries, or pictionaries, or barbed wire, or haywire ?