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Sleep on 

To sleep on someone means you don’t believe they’ll actually achieve something they said they would or will do. It’s basically someone calling you bluff on something you say you’ll do, but instead of them verbally calling you bluff, they’re thinking it. Its thinking that someone will stay stagnant in a journey, process, career, etc. It’s a lack of respect towards that person either because they haven’t done it before or because you don’t believe in them. Basically, if someone is sleeping on you, you’re not a threat nor respected by that person and this is a time to prove that person wrong.
The other day, I told someone I wanted to be an oscar nominated actress. She laughed in my face and said “yeah alright sure thatll happen”. I laughed and told her “don’t sleep on me”.
Sleep on by Youngjoyswag March 9, 2018
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sleep on 

To ignore, overlook, or to forget something. Used as a verb, to sleep on something. Overlooking something that is deemed good or tight.
"Yall can sleep on the Steelers. They finna take it all this year."
sleep on by Thrilla in Vanilla November 24, 2004
Word of the Day on July 17, 2016

sleep on 

A imprint found on skin from your pajamas or underwear.
I woke up with a lot of sleep ons from the night before.
sleep on by JohnnyD_Urbanite January 20, 2017

sleep on it

delay the decision to the next day or something (idiom)
I'll get back to you tomorrow, I have to sleep on it
sleep on it by Rapture1 November 30, 2011

sleep on the floor 

Euphemism for performing coitus (having sex), not necessarily on the floor.
Jonathan: Hey did you sleep on the floor last night?
Mathias: Yeah! It was Sarah's.
Jonathan: LETS GOOOO!
sleep on the floor by rijoma March 1, 2021

sleep on mic 

to intentionally fall asleep with someone with your microphone left enabled on over a voice communication app, such as Discord.
Ashley: Josh, do you want to sleep on mic with me?
Josh: I thought you'd never ask.
sleep on mic by JKIM420 October 16, 2018

Sleep on me 

When you don't get the attention you deserve.
I really like Josie but she's sleep on me.
Sleep on me by GeeMoney100 October 2, 2016
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briefcake 

"Did you check out the briefcake in courtroom C?"
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Brought to public attention by Bob Woodward and Carl Bernstein in the book on the fall of Richard Nixon, All The President’s Men, ratfucker was Nixon’s term for a political operative who sows chaos among opponents; an agent provocateur. It is thought to have originated among campus political rivalries at USC, and seems to have some usage in the US military.
Along with Nixon’s other ratfuckers, Roger Stone caused fights at otherwise peaceful Democratic Party protests to generate a false narrative that the Democrats were violent and dangerous.
Ratfucker by Ricky Ramjet November 2, 2017
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