Neck of the woods
The place where speakers live
Nerves of steel
A person who is not frightened by something easily
Nest egg
Money saved for emergency
New blood
New people / generation
New York minute
Something that happen very fast
Never do things by halves
Put much effort when doing something to finish it
Never never land
The ideal perfect place where people dream to go.
Night owl
A person who goes to bed very late
Nineteen to the dozen
Talk loud and annoying
No dice
No luck
No go
Something that is not going to work
New skin off my nose
Feel not impacted at all
No sweat
Very close competition / No Problem
No quarter
Finish with no compromise
None the less / Nonetheless
However
None too
Not at all
Nose in the air
Act superiors than the rest
Not a Chance
Not at all
Not my cup of tea
Not my type / favorite
Not the end of the world
Not the worst. Use to comfort people
Nuts and bolt
The most important parts of something
Nuts
Crazy