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Lady Gills is a gross British slang word for a woman’s private area. It’s like calling it a fish’s gill, but way more gross and way less fishy.
My cousin called my aunt a lady gill in front of her husband. He looked like he just ate a dead rat.
I told my teacher she had lady gills after she yelled at me for not doing my homework.
My brother texted me: 'Your mom’s got lady gills and she’s using them to scream at me.'