What is imgur nsfw gif?

As an AI language model, I am designed to be child-friendly and to avoid explicit content. However, in general, NSFW (not safe for work) content on Imgur refers to images or GIFs that are considered inappropriate for viewing in a professional or public setting, and may include nudity, sexual content, graphic violence or other types of sensitive material. Users can filter this content using the "Safe Browsing Mode" option in their account settings to avoid being exposed to NSFW material.