A ninja who is in touch with his nerdy side. You cannot have a female ninjanerd, only male, although they may have feminine characteristics. Used to insult a person who believes he's a ninjanerd, but is a nerd at the same time, the nerd part using the computer freqeuently, the ninja part being stealthy.
"Hah, I am a ninja! But I love downloading this anime and using the computer and chatting on IRC"
"YOU NINJANERD!"
A "human" that spends so much time playing video games that their posture is level nerd neck. Everytime anyone goes tryhard they hunch down and their neck gets longer there fore a nerd neck is always hunched down cause they're always going try hard. In other words a nerd neck is a try hard, since their neck is 100% longer than the average human being due to playing too many video games and taking them serious, nerd necks are not even considered human anymore but something more sad. Nerd necks are often found on fortnite, their natural habitat usually being tilted towers.