A person who refuses to sleep at night. Usually do to the fact that they sneak out and molest young boys.
Robbie is always molesting young boys and never has time to sleep at night. I think he's a nocternal.
by Matt "The Black Stallion" August 07, 2003
Amy: Gurl i slept all day and was up eating all night while watching Helluva boss for the whole night till 8 AM
Rosebelle: Gurl r u a Nocternal animal or something
Rosebelle: Gurl r u a Nocternal animal or something
by Fizzarolli February 03, 2023