all day er day 

"Er" is short for every; a phrase that means an action is occurring all day, every day

Tim: Yo, Mac! You been smoking that herb?
Mac: You know. All day er day!

all day er day by Tim Elephant August 25, 2008

All day Err day 

24/7, always open, all day everyday, never closed,

Do you guys smoke?

Yeah, all day err day.

All day Err day by espo23 February 22, 2017

all day err day 

A phrase that is used to make it seem like you do something impressive, when in reality you've never gone near it.

Person 1: Do you even lift?
Person 2: Yeah man. All day err day!

all day err day by MightyShizzle November 10, 2013

all day err day 

A deformation of "all day every day", meaning something happens very often.

Person A: You busy?
Person B: Hell yeah! Hussle all day err day.

all day err day by Tatsuman December 22, 2016

all dayer 

A play on the phrase all nighter; used to describe the almost impossible feat of staying up all day without napping.

dude #1: Hey bro wanna take a disco nap?

dude #2: Naw dude, I need to get some stuff done. I'm going to have to pull an all dayer.

all dayer by erieee May 22, 2010

All Dayer 

Staying awake all day to try and reset your body clock.

Normally follows after a sequence of going to sleep at increasingly later times, until your going to sleep around dinner. The only cure is to hack it through the day and go to sleep at a sensible time.

Need to go to sleep at a sensible time, gonna do an all dayer.

All Dayer by jake29 June 2, 2011

All-Dayer 

The feeling one gets after pulling an all-nighter. You start to feel so tired that you aren't even tired anymore. You eventually start to feel like you are in a dream. Sometimes when under the influence of an all-dayer people might start talking to complete strangers and be completely unaware of what is going on around them. You might also feel a strange sense of happiness and confidence.

All-dayers can be fun and scary at the same time.

All-Dayer by teboe17 June 6, 2013