instead of an all nighter, where as most people fall asleep as soon as morning comes around, an all dayer extends it another 24 hours. This makes it a 48 hour awake period.
by Rico Beast November 02, 2008
Too pull an all-dayer; Coming home from school and playing video games all day, until your bedtime at 9 o' clock.
Person 2: Hey, Nischant! I heard you played an all-dayer yesterday!
Person 2: Yeah, man. I played right after school until night time. It was dopesauce!
Person 2: Yeah, man. I played right after school until night time. It was dopesauce!
by yakerrrrr February 25, 2011
'all-dayer' day - when you sleep all day.
As opposed to all-nighter night, when you're up all night.
As opposed to all-nighter night, when you're up all night.
by Zudonim January 15, 2017
by All Damn Dayer June 23, 2015