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Downstem and Run 

The act of going somewhere for something, then once you get it you just leave.
Jakob: I just need to grab my downstem.

Richie: Alright, are you gonna hang for a bit?

Jakob: Nah man!

Richie: So your just gonna downstem and run?!
Downstem and Run by Mrstealyovape September 17, 2018

Diffused Downstem 

The female part of a bong's downstem that you put the actual bowlpiece into that specifically has around 10-15 small holes blown near the end of the tube that goes into the water.

Contrary to what the dipshit who posted the first definition thought, these holes are not drilled or cut with a laser. I don't know where he got his information, but i have made many diffused downstems in my day, and i certainly do not own a laser or a glass drill bit. I own a torch, and the holes ARE BLOWN LIKE ALL OTHER FORMS OF GLASSWARE INTENDED FOR SMOKING PURPOSES!!!! What a shocker, huh? That glass blowing would involve blowing. The science behind it is that you crank up the oxygen in a oxygen/propane torch so that the flame becomes concentrated, and ultra-hot. Then you heat up a small area that you want one of the holes to cover, and then blow into the tube until the area bubbles up, then pops like gum. You repeat this until there are a sufficient number of holes for there to be little to no drag when hitting the bong that the downstem is intended for. Used properly, this form of downstem enables the smoker to take bigger hits as the smoke is cooled and filtered more efficiently.

The only time a laser is used is for slitted diffusion openings, not holes. This is only found in very upscale bongs like ROORs.
Joe: Hey man, i got 80 bucks, can you make me a kickass bong?

Tom: Yeah for sure, any specific requirements?

Joe: Yeah make that shit with a diffused downstem, i like to take fatty rips of the cheeba.
Diffused Downstem by Smot_Poker August 10, 2009

Diffused Downstem 

A glass downstem with drilled or laser-cut holes at the bottom in order to increase bubbling to further cool the smoke. Used in a bong.
John: I got an ash-catch for my bong, and a new downstem.
Bill: Is it a diffused downstem?
John: Of course, you think I'm crazed?
Diffused Downstem by BlazerMan December 3, 2007
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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