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noun.
A gathered assortment of musicians with the intention to write completley new material. Cell phones are turned off, drinks are made and an agreement to not leave the room until something is complete is in place. Name spurs from the words Rock and Locked in.
Our practices are getting stale, I think we need to schedule a rock in.
Rock In by King R November 7, 2009
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rock in sock 

rock in socks are breasts that have lost the ability to hold themselves up. these breasts give the appearance that they are nothing more than a rock placed inside a tube sock hanging from one's chest
mike klein's mom has rock in socks.
rock in sock by kristo January 27, 2004

Rock in a Sock 

A crude flail like weapon crafted within seconds, usually used by someone in a very desperate and dire situation.
Often used when you have no other weapon. Usually people take a sock off, drop a rock in it and then they have a weapon.
Ay bruh, we was bout to jump that dude but he ripped off his sock and tied off a rock in the end of it. Rock in a sock be a crazy mad weapon bruh.

If you ain't got a weapon you gonna pick up a rock in a sock.

Rock in a sock is a prison style weapon like the slock.

rock in my shoe 

The opposite of a feather in my cap. Something that is less than ideal; annoying; a hinderance
"Being the head of this project has proved to be a rock in my shoe."
"I always feel like a rock in my shoe at a party"
"This rock in my shoe has really been a rock in my shoe"
rock in my shoe by absurdjunk March 2, 2021

Rock in your pocket 

Referring to a boner of a stimulated man; used in a sexual context.
"Is that a rock in your pocket?"

Rock in a tube sock 

A rock in a tube sock is when the females' breasts are so saggy it looks like a rock in a large tube sock.
damn, I fucked this girl and her tits were like a rock in a tube sock
Rock in a tube sock by Chunkybuddha January 14, 2009

rock in a sock 

a women's brest that have started to sag. With the majority of the weight at the bottom it looks like a rock in a sock.
That man she's so old her boobs are rock in a sock.
rock in a sock by Spadesx May 17, 2006
More from Urban Dictionary

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026

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
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