| Abbreviation | Definition |
|---|---|
| NISSAN | Nine Idiots Standing, Saying Absolutely Nothing |
| NISSAN | Not In Service Sitting At Nissan |
| NIST | Nerds In Straight Ties |
| NIT | No Investment Tournament |
| NIT | Not Important Tournament |
| NIT | Not Interesting Tournament |
| NITRO | Nothing Interesting; Turn Raw On |
| NIV | Nazi Invented Version |
| NIV | Nearly Inspired Version |
| NIV | Notoriously Implausible Version |
| NJ | No Jive |
| NJAD | Not Just A Dad |
| NJS | Nice Job, Sayonara! |
| NKOTB | Nauseating Kitsch Of Teeny Boppers |
| NKT | Never Known Tom |
| NLCP | No Limit Crazy Pineapple |
| NM | Named Monster |
| NM | Nipper Map |
| NM | Notorious Monster |
| NMC | Nurses Must Complain |