Cello and Chill is in reference to Netflix and Chill. When a cello player asks someone to Cello and Chill. The interaction has an implied sexual nature.
Travis: Hey, Hannah, do you want to Cello and Chill later?
Hannah: How about we start Cello and Chill right now?
by CelloandChill December 17, 2019
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the separation of sixty and nine resulting in the chillest and most broest thing in the world
did you see jackie go all chill-lysis last night?
by officernasty69 December 16, 2010
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1. The amount of time a given person has to relax
2. Dedicated chilling time

Aka ToC
Since Jill has to bartend this evening she mentioned to Luke that her time to chill is limited.
by breh vity January 7, 2018
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verb; describes a state of being where one is outwardly chill but inwardly panicking

What someone does when they’re procrastinating, stressing, and hiding from responsibility; you’re still bothered but not willing to do anything about it
Co-worker: “How was your weekend?”
You: “I’ve got a big deadline coming up so I was stress-chilling. I caught up on Netflix while also having an anxiety attack.”
by Stresschiller December 20, 2019
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Verb
Origin: Unknown
Pronunciation: Netfleex and Cheek
The action of Fucking With Netflix in the background
by 7H3 5P4N15H 0N3 June 30, 2023
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He said he wanted to "Netflix and chill" but then strated to unzip his pants??
by MichaelMLP September 1, 2023
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