To inflict pain on the back of a person's neck for saying or doing something morally wrong or unintellectual.
You may also get a "neck" when you saying something very irrelevant to a certain topic; or when you say/ write something stupid or extremely unnecessary.
Person #1 : Dude, I just got that girl's number!
Person #2 : The one with the long hair?
Person #1 : Yeah!
Person #2 : ....Dude.....That's a guy.
Person #1 : OMFG.
Person #2 : NECK.
3👍 3👎