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1.
Allturnal refers to someone who doesn't sleep often, or at all.
"When do you sleep?"
"Never! I'm allturnal."
by ClintonAnthony August 24, 2008
 
2.
Allturnal is the term used to refer to someone who does not sleep often, or at all.
Originated from the songwriter/screenwriter Matt Furey.
Allturnal originates from Matt Furey.
by Clinton Anthony August 24, 2008