Night Jack 

When you are a beautiful daytime man who is productive and sweet but at night your horniness kicks in. You fall asleep after failing to have your sexual needs met and wake up jerking off. Your roommate is so confused but delighted to know at least someone is getting off in the old apartment.

Dane: Last night? I don’t know what came over me…
Cait: Yea you turned into Night Jack for sure.

Night Jack by JoleneAndJojoKissing January 31, 2022

Rat on jack night 

When you are with family or friends and they start insulting you without knowing it to your face.

Aunt- Man, Bob needs eat better
Grandma- Ya I know, he looks so pale
Bob- Hey guys this isn't Rat On Jack Night

Rat on jack night by JSs8227 January 25, 2017

night jackal 

One who lurks around in chat rooms who is actually a teenager, but by bad luck chose a name that makes him/her seem like a pedophile to the rest of the room and ends up getting kicked out.

Night jackal has entered the room!
Night jackal: Hey guys!
Night jackal has been booted from the room.

night jackal by greenday2011 November 15, 2009

night jackal 

A chronic masturbator who is ashamed of his/her habit. A night jackal will go to great lengths to keep his/her habit a secret.

Rahul has become the night jackal by jerking off in the crawl space of his basement. His sneakiness has allowed him to keep his habit a secret from everyone.

night jackal by 4th Best Master Debater December 5, 2010

Night Jackal 

A name, verb, or exclamatory phrase used to denote someone or some action that qualifies as a creeper or stalker and is usually a pedophile. The term is believed to have originated from a real-life stalker-creeper who called himself the "Night Jackal" for a user name on the Internet, was caught masturbating at a local theater in the middle of a Jonas Brothers movie, and is now something of a local celebrity.

Person: Dude, you know that Rahul kid? I heard he invited a group of child trick-or-treaters inside his house and locked the door and chased them around.

Person 2: Oh man! What a night jackal!

Night Jackal by Iamthetalonsofthenight November 15, 2009

Nightpack 

A gang term for things that are brought with them on a night stroll or party.

I’m boutta hit the block lemme grab my nightpack.

Nightpack by Lyricalist April 25, 2022

nightback

Flashbacks or unpleasant/embarrassing memories that come out of nowhere before you sleep.

"I got a nightback yesterday about me peeing my pants in the school bus!"

nightback by scotzgot May 29, 2023