4 AM 

When the clock strikes 4 it’s a sign that you need to get yourself to sleep

It’s already 4 AM, ight imma head out

4 AM by CodeBlueCodeBlue November 8, 2019

4 am 

When you have to poop, but do it exactly at 4 in the morning. Usually when someone outside of your family or someone you are not used to, stays at your house/vice versa and you don't want to drop a deuce while they are awake

"Man! I missed my 4 am"

4 am by Atomictaco March 12, 2015

4 am 

the time of day when you really know you stayed up too long.

person 1: oh shit... i stayed up till 3 am doing my term paper.
hot female: fuck off
Person 2: i stayed up till 4 am doing my paper.
hot female: slacker! marry me!

4 am by thegreatmonkey54 July 10, 2005

4 am 

( n. ) a time when people who are actually up this late are either heartbroken or in love

i got your text at 4 am, and i knew you were heartbroken af

4 am by eh.retro January 31, 2019

4 am 

A notification on my phone that its time for bed and to quit talking to "him"

'phone alarm rings'
me: shit i gotta go its 4 am
him: awe ok good night
me: good night
me: 'cries'

4 am by qwerty.b November 12, 2019

4 am 

The perfect time for a sandwich. Used commonly when a person is not tired, or cannot figure out a fucking alarm clock and have to wake up early. It is often caused by watching random videos and staying up on social media

I am writing this at 4 am with a sandwich in my hand

4 am by swamphed February 26, 2021

4 AM Syndrome 

A phenomenon which leads one's English (or whatever language one speaks) to either become less controlled or logical than usual or archaic and verbose; it also causes one to say things one wouldn't ordinarily say. Often quite embarrassing, this syndrome is most evident in those who chat or speak with friends or relatives in the wee hours of the morning.

Deb: I'm sorry about last night!! It was late, and I don't know what I was saying!
Pedro: No worries--I'm sure it was just the 4 AM Syndrome.

4 AM Syndrome by BostoniensisXX September 6, 2013