A pun based off the term gaslighting when a person or group of persons (typically a comment section) blatantly lie to gas up an ugly person trying to pull off a look they shouldn't with "yasss queen slay girl boss" energy. Typically this will be skinny girls telling fat girls they look amazing in skintight revealing outfits complimenting their "confidence" so that they can look better in comparison or handmaidens and trans people telling other trans people how awesome and feminine they look in anime outfits they got off wish or masculine they look while still in makeup, jewelry, and neon hair dye.
Did you see all the yasslighting going on in the comments of that Lizzo post?

Yea it was almost as bad watching Dylan Mulvaney and that other trans person on his tick tock with all the facial hair telling each other how great they are at girlhood
by 2Based2Care February 22, 2023
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Yasslighting -

When a stupid woman encourages another stupid woman to engage in demoralizing, deviant, and destructive behaviors.

Examples:
Girl 1: posts a pic eating cupcakes, is obviously obese.
Girl 2: YASSS! You go girl! You're a BBW!

Girl 1: I just divorced my husband, and now I'm a single mom and things aren't as rosy as I thought they'd be.
Girl 2: Fuck him, girl! You don't need a man! Keep being strong and independent! You got this!

Girl 1: Mom's watching the kids tonight, think I'll go to the club and be a slut.
Girl 2: YASS girl! Fuck the patriarchy!

Misery loves company. If someone is encouraging you to do something you know in your heart is wrong, they are NOT your friend.
"Becky, you need to quit listening to Karen, she's Yasslighting you. She's jealous of you, and wants to bring you down to her level."
by K1lay June 4, 2023
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The act of complimenting, inflating, or otherwise boosting the ego of a women with the intended goal of making them oblivious to the (low) objective value they bring to the sexual and dating marketplace.
Bro, I'm 28, make 100k/year, am 6'-0" / 170 lbs, and none of those 20 overweight girls over there would even talk to me. The yasslighting they get from their friends and podcasts must be intense.
by suchiekins June 29, 2023
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The opposite of gas lighting when a bunch of people, usually liberal white women, provide transparently untrue compliments to someone in order to make them feel better.
An example of Yasslighting in a conversation would be

oh yeah "Michaela" you totally look like a pretty woman! You look prettier than most cis girls, I wish I could slay like that.
by Soupburger March 25, 2023
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when you tell someone that they're serving but they're not. typically used when someone tries to do a fruity slay and you lie to them by saying it's yass. common among straight people who are scared to disagree with queer taste, so they say yass out of confusion.
origin: portmanteau of "yass" and "gaslight"
"people might yasslight you but that eyeliner is not giving."
"who yasslighted him into getting that haircut?"
by codyfinch March 1, 2022
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