These names mean or sound like dirty or gross things in other languages, according to HuffPost.
1. Bill. Bill is similar to the Dutch word for buttock, which is "bil."
2. Siri. Whether it's your name or you're talking to your iOS devices, "Siri" is a slang word for a man's junk in Georgian. In Japanese, it sounds like a term for the back area.
3. Kiki. This name may be the star of that Drake song, but in Japanese it means "crisis." In Tagalog/Filipino, it means "vagina."
4. Pippa. This trendy British name has various dirty meanings. In Swedish, Pippa is a crude term for sex. In Italian and Greek, it's a term for very specific sexual acts.
5. Lisa. It's not necessarily dirty, but Lisa sounds a lot like the Greek word for "rabies."
6. Peter. Peter means "fart" in French, but isn't pronounced like the English name. The shortened version "Pete" is slang for a specific sexual act in Argentina.
7. Cal. Cal means "mud" in Bulgarian and "feces" in Russian.
8. Gary. Gary apparently sounds somewhat like the Japanese word for "diarrhea."
There are a handful of other crude meanings for the names Manda, Mona, Nick, and other names which you can read about here.