the time period between 12 midnight and 1:30 am
I stayed up all night watching numerphile. I went to bed at 2.
by bloooo December 9, 2014
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All night means that something is truly amazing or awesome; highly favored.
"Yo, did you see that game last night?"

"Yeah, I mess with the Lakers all day but the Heat is all night, fam."
by ncswag March 25, 2014
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When a two people kiss cuddle & fuck during the late night and early morning hours of the day.
Craig : So why were you late for work again today?
Chad: I was over at Kiersten's again and we went "All Night Long" and my dick was tired this morning!
Craig : Nice!!!
by SlopNChop December 18, 2016
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Hooking up with someone and having sex all night long.
So where have you been?
I met this guy id seen around before but i didnt think he liked me,but he took me to his place and oh my god did he fuck me! We went all night long!
by Online chatter October 24, 2008
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Basically a highly banterous party which lasts all night. Drinking and dancing is most likely involved.
"Hey Paul, you feeling going out tonight?"
"Nah bro, I'm going on a all night bender"
by mtuck504 June 21, 2015
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When you go on a cocaine binge that lasts more than 24 hours straight.
The doctor said I will die if I don't stop riding that All Night Train.
by Mojo Maniac July 10, 2008
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The women that lived next to you having countless men coming in and out and u dont know why
"dude your mom was open all night"
"dude let go to the open all night club"
by jesse leon October 27, 2004
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