Have you ever seen something like NVM on social media or someone replied your message using the acronym and you are still confused about the meaning, never worry because you are about to know what the acronym stands for. NVM is an acronym for Never Mind. The acronym is used to tell someone not bother for something the person is pestering you about.
People can be so frustrating and hell bent at knowing some things about you, but if you don't want to discuss those things with them, you can simply say NVM i.e Never Mind, which means they should not bother about knowing those stuff about you.
Also, it can be used when you don't want someone to accomplish a task for you. For example, someone might decide to help you carry your bag but you don't want the person to do that for you, you can simply say 'Never Mind'