Pronounced (N-JOD)

Stands for a No Jack Off Day. You use it on days you would feel guilty for jacking off. For example Easter or your Sister's death day.
Jessica: Wanna look at porn with me?
Andy: Fuck Yeah

Andy (10 seconds into watching porn): Oh Shite! Sorry baby today is a NJOD.
Jessica: Oh, what happened?
Andy: I just went to my mother's funeral.
Get the NJOD mug.