Nite Owl 

Someone who plays fortnite for way too long.

"Hey have you seen that lazy ass nite owl. only plays fortnite and never sleeps."

Nite Owl by Bobieo July 14, 2018

NiteOwl 

Noun: An elbow to the groin
Adjective: Term used to describe a undesirable person/place/thing/situation
Verb: The act of receving or delivering an elbow to the groin

Noun: "Dude, I have to work 4-12. I just got NiteOwl'd"
Adjective: "Wow, look at the weather. It's pretty NiteOwl"
Verb: "Don't NiteOwl me with 1-9 again please"

NiteOwl by ChicksDiggFishingVest July 29, 2009

niteowl 

A person who loves to go out at night and not so much through the day. Often they are non existent during daylight and rise to get up to mischief at nite. also features big eyes and a keen sense of direction.

I never see her through the day shes such a niteowl

niteowl by HMF May 1, 2005