"I would say 'kiss my ass,' but y'all can't afford it."
Sha'Carri Richardson gave an unfiltered message to all of her haters after failing to qualify for the world championships next month ... giving the double bird and vowing to return to dominance.
It all went down after the track star finished fifth with a time of 22.47 seconds at the 200-meter semifinals on Sunday in Eugene, Oregon ... which eliminated her from competing for Team USA at the 2022 World Athletics Championship.
The 22-year-old sprinter made sure to let her critics know she's blocking out all the negativity shortly after her disappointing outing ... and she didn't hold back.
"I normally don't be making video to post on here 'cause I really don't got nothing to explain to y'all," Richardson said on Instagram.
"But, to my supporters, I wanna thank y'all. It's been a long road. Ain't over yet. To my haters, I got another video for y'all."
Sha'Carri wasn't lying, because she posted a video laying on her back and spreading her legs ... basically telling all her haters they can "kiss my ass."