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Blow your back out 

To fuck someone so good, they can't walk for a couple of days. Hence their back is blown out.
Boy: Damn, girl, I can blow your back out
Girl: Um, I don't think so, I have a soccer game in the morning and I'd actually like to walk.
Blow your back out by BritneyLee09 February 22, 2009

national blow your back out day 

National Blow Your Back Out Day is on July 1st. People celebrate by getting their backs blown out.
I'm getting my back blown out ? Didn't you hear tomorrow is National Blow Your Back Out Day?!

blow your back out 

(slang, vulgar) To have sex with someone so intensely that they experience physical or psychological effects afterwards, such as difficulty walking, altered mood, or altered perception of reality. Usually implies that the person who blows the other’s back out is very skilled or well-endowed. Often used in a flirtatious or humorous way.
1. Rachel: "Oh, girl, you won't believe it! He didn't just blow my back out; now I walk like I'm auditioning for a wacky walkathon!"
Emily: "Well, that's one way to leave a lasting impression!"

2. Sam: "I think I might have met someone who can really blow my back out."
Jake: "Is that why you've been practicing your unexpected interpretive dance moves?"

3. Nina: "His Tinder profile says he's a professional 'back-blower.' Is he some sort of chiropractor?"
Lori: ("This is too good to pass up!") "Oh, no, Nina. Brace yourself for a guy who can blow out birthday candles from a mile away! 😄"

4. John: "I heard they broke up after that weekend trip. What happened?"
Lila: "Rumor has it, he tried to blow her back out, but it was just too much for her."

5. Melissa: "So, did he really manage to blow your back out?"
Lisa: "Oh, he tried, but he couldn't even make it through a round of 'Happy Birthday' without running out of breath!"

Blow your back out 

To fuck someone so good, they can't walk for N amount of time.
Broski 1: I'm gonna fuck you so good, I blow your back out
Broski 2: aight, bet
Blow your back out by emoboyy.xd December 25, 2023
More from Urban Dictionary

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026

Slop Grenade

When someone uses AI to generate a large document, slide deck, or piece of code/software and tosses it over the fence for you to deal with.
Chad: Hey Brent I sent you the new backend API change to review, it’s only 100 files changed.

Brent: he just tossed me a slop grenade
Slop Grenade by Joe Squid September 28, 2026
Word of the Day on September 29, 2026
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
After we broke up, he was floxi to me.
floxi by Dr. Geek May 13, 2009
Word of the Day on September 28, 2026
NYC people who migrate north to Quahog, RI to see the leaves in the fall.
New York and everyone from there can fornicate themselves with an iron stick.
leafers by ss++ February 8, 2005
Word of the Day on September 27, 2026
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