In Internet slang, "NTS" can either mean "Nothing To Say" or "Note To Self." The slang "NTS" is often used in instances when an individual wants to remember a certain thing for future use or when a person is lost for words and wants to convey it.
"NTS" is used on chat services, text messages and social media platforms. On Twitter and Instagram, "NTS" can also be used as an hashtag.
As of 2015, Internet slang is in common use, but it is also now used in everyday vernacular. Internet slang phrases such as "lol," "lmao" and "smh" are used in typical conversations.