American, informal

someone who is immediately ready to do something, especially to help someone.

This guy had just gotten a flat tire, and there I was, Johnny-on-the-spot with my tools in the back of the car.

• need something like a hole in the head
• need something like need a hole in the head
• need something like you need a hole in the head
• need to have head examined
• need to have your head examined
• need your head examined
• need your head examining
• neither here nor there
• nerves of steel
• nest egg
• never a dull moment
• never darken door again
• never darken your door again
• never hear the end of it.
• never hear the end of it
• never live down
• never live something down
• never mind
• never mind someone
• never mind something
• never-never land
• never say die
• Never say die.
• never say never
• Never the twain shall meet.