NSFW
abbreviation- not safe (or suitable) for work(used in emails, on internet forums, etc. to show a link to a website or web page that contains images, text or video that people may find offensive)
工作时不宜，不适合上班时观看（全写为 not safe/suitable for work，用于电邮、互联网论坛等，表示链接的网站或网页中包含可能令人反感的图文或视频）