proper name · internet slang used as a euphemism for "your mother" (你妈 nǐ​mā), serving as an expletive or interjection

尼玛，这也太坑人了吧！

proper name · transcription from Tibetan (Nyima), meaning the sun, often used as a personal name

尼玛是一位非常有才华的藏族歌手。