Ner is an easier way of saying No because it requires less tounge movement/articulation. Also, it sounds better than the standard No, which everyone's heard millions of times. Add a little spice to your life; use Ner.
Did you put your dishes in the dishwasher?
"Just Don't Make A Habit Of Abbreviating Everything To Death."
Useful acronym to confuse and give "subtle" hints to people who are abbreviating things WAY too much or otherwise using acronyms unnecessarily.
"FR uses FECN, BECN and DE, all in the HDR, to perform congestion control."
"Huh? Oh.... (feels foolish)"