Phrases:
1. Acronym short for "Not In That Way"; typically appended to a directly preceding comment during a chat to indicate that any seeming innuendo within the previous comment was unintentional.

2. Acronym for "Not In This World"; used as a response to an overly optimistic or otherwise unlikely comment, to assert the unlikelihood of such an event actually occurring.

Other Uses:
1. Acronym for "National Institute of Technology, Warangal"; Established in 1959, and formerly known as the Regional Engineering College, this Indian institute of higher learning has an emphasis on academic programmes based within engineering, pure science, and management disciplines, as well as supporting research programmes covering a broad range of studies.
2. Acronym for "Night In The Woods"; A very well received, narrative-heavy indie adventure game set within a world of anthropomorphic characters.

Internet persona(s) who happens to follow you and you happen to follow them back and maintain communication with and have a mutual liking for eachother whether it be friendship wise, etc. (Mutuals if more than one mutual)

An acronym for the game Night In the Woods.

Not In That Way. Used when somebody has said something that may be take the wrong way. Mainly when one person has a dirty mind.

An abbreviation of the game "Night in the Woods".

And amazing game around mainly four characters:

Greggory Lee, Angus Delaney, Mae Borowski and Bea Santello.

I don't want to spoil it, but it's an amazing story game I think most would enjoy.