nit

Short for 'nit-pick'. Usually being used in code review(programing) meaning: a small change that may not be very important, but is technically correct.

gambling term. usually found in poolrooms. Refers to:
1. Someone who's so afraid to lose a bet that they have to be coddled and convinced for an hour that they're going to have a great time and probably win, too. Eventually they may play, but by the time they get on the table the stakes are so low the table-time will eat any winnings you make.
2. someone who won't play unless they have a guaranteed sure win.
3. someone who'll squeeze a dollar 'til george's eyes pop out of the paper.

A nit in poker is only playing premium starting hands and afraid to put in money without the absolute nuts. Pretty much similar to a rock. In lower stakes games this style is working marginally because the bad players don't pick up on their habit and pay them off anyway. Any decent player can crush them though which is why you generally won't see a nit in higher stakes games.

idiot; short for nitwit

(noun) Derivative of "nitpicker"
In poker, refers to a person who is obsessed with following the rules, even when it will not affect the outcome of the hand. This person will hold up the game by calling for floorman rulings in obvious situations. Having a nit at the table is often detrimental to the spirit and quality of the table. Often a trait of a rock.

Used by neds to actually replace the word "no".

someone who is lazy, likes to drink beer, likes to sit on the couch with at least one hand in pants (preferably two), attends class no more than 3 hours a week, watches porn at least 2 hours a day, and knows the definition of "shit list"