hair blower

Obviously, a blow dryer. Duh.

You: (knock on neighbors door)
Neighbor: What do you want?!
you: do you have a hair blower I can borrow?
neighbor: a what?!
You: you know, a hair blower?
Neighbor: (clearly confused and unsure what to say) oh, a hair blower! Be right back! (Quickly shutting and locking the door)