Sleeper’s high

Reaching a certain point of tiredness where you are no longer tired and or cannot fall asleep
I was gonna go to sleep early last night but I hit my sleeper’s high
by Doughyface April 16, 2021
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Project Moon sleeper agent

Fans of games made by indie developer Project Moon that will appear almost anywhere if one of their triggers is said or featured otherwise, examples include but are not limited to:

Red mist, name of a prominent character
Ideal, prominent theme for a story
A black mask covering someone’s entire face, a reference to another prominent character

Despite Project Moon having a statistically smaller fanbase compared to larger fandoms, sleeper agents will arrive in large numbers almost anywhere if any trigger is detected.
The name Project Moon sleeper agent comes from the fact that these persons will activate a set of behaviour when specific triggers are triggered like any sleeper agent and are fans of Project Moon, therefore Project Moon sleeper agents.
Person 1: Grr I’m so angry at person 2 I’m going to turn them into a fine red mist.
Sleeper agent 1: Bait used to be believable- holy shit is that the Red Mist.
Sleeper agent 2: The red WHAT?
Person 3: Oh the Project Moon sleeper agents are here.
Sleeper agent 3: Everyone get in here: summon a limbillion Project Moon fans
by Xavagery May 07, 2024
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bill cosby sleeper

Slipping sleeping pills into an alcoholic beverage and give that to their date and have sexual intercourse with them without them knowing it.
Bill was mad at his girlfriend hasn't had sex with him in a long time so he gave her a Bill Cosby Sleeper.
by dustylicious October 29, 2015
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Star Sleeper

Someone who saves their virginity for a celebrity. They truly believe that at some point in their life, they will have a chance to fornicate with said celebrity.
Gabby is such a star sleeper. She won't stop talking about how she wants to bang Liam Payne from One Direction
by GabAram February 09, 2012
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Sleeper cell

When a based and red-pilled gamer has to control their power level, so that the unwashed masses don't start noticing anything.
SUSAN: Hey Mark, what do you think of BLM? They really help amplify the voices within marginalised communities, don't they?

MARK (Sleeper cell): Yes, love em!
by Buck Destroyer June 04, 2021
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Sleeper Cell

Someone of middle eastern or indian descent who has hidden in the states for a while as a secret terrorist.
“That nigga Nick Makki is a sleeper cell did y’all know that?”
by ballbuster24 October 23, 2023
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movie sleeper

One who tends to sleep through movies shown at theaters, or on TV, YouTube, Netflix, etc., no matter how "exciting", "scary", "funny", or even "sexy" the movie might be (to others, anyway!).
Dude #1: "I was practically bored to DEATH by that movie, even though it IS the 'blockbuster of the Summer'!"
Dude #2: "Yo, I almost faded out like a light, while seeing that flick, too! So, you ain't alone, homie. Welcome to...the MOVIE SLEEPERS' CLUB!"
by mastergeemoe July 07, 2015
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