| night owl or night hawk | |
| —n | |
| informal a person who is or prefers to be up and about late at night | |
| night hawk or night hawk | |
| —n | |
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| a gadget; dingus; thingumbob. |
night owl
A person who habitually stays up late and is active at night, as in You can call her after midnight, for she's a night owl. This colloquial term, originally used in the late 1500s for an owl that is active at night, was transferred to nocturnal human beings in the mid-1800s.