Often used to describe supervisors or managers who closely monitor employees, causing stress. I can't concentrate with the manager breathing down my neck all the time.
Pro Tip 2/3
Privacy Invasion
Implies an uncomfortable level of scrutiny and lack of personal space. Stop breathing down my neck while I'm working on this project.
Pro Tip 3/3
Figurative Meaning
It's a metaphorical expression and doesn't involve actual physical breathing. Even though he’s on vacation, it feels like his boss is still breathing down his neck.