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Hydrogen-Sulfide 

Hydrogen-sulfide is what be makin farts stank.
Hydrogen-Sulfide by LidaMif March 19, 2010

Hydrogen oxide 

A scientific word for water. H2O. Not to be confused with deuterium oxide, which is heavy water (D2O).
A: I filled these ballons with hydrogen oxide.
B:What's that?
A:It's water.

hydrogen hydroxide 

The term "hydrogen hydroxide" means a hydrogen ion (H+) bonded to a hydroxide ion (OH-). when you put those together, you get H-O-H, which is of course H2O, which is water!
Dude, I need some hydrogen hydroxide!

What?

Hydrogen hydroxide. . . . You know? A hydrogen ion and a hydroxide ion bonding? H2O? WATER?

OOOOOOOOOOOH.

di-Hydrogen monoxide

a substance that sounds creepy, but if you write the formula out, think again...
Bob: di-Hydrogen monoxide is gonna destroy the world

Joe: idiot... (takes a large gulp of water)
di-Hydrogen monoxide by dab52 January 1, 2012

Hydrogender 

A person who’s gender may potentially shift when engaged amongst the act of bathing; subsequently, if the individuals stands beneath the flow of water for an extended duration of time invariably risks losing their present identity due to the immense amount of combined hydrogen and oxygen that arrives considering said hydrogender habitually evades the normal hygiene regiment of the average human in fear of negating their present gender identity without one’s own neurological consent. Pert Plus, unlike Suave or Dove may ward off unwanted shifts in masculine/feminine characteristics.
Hydrogenders are frequently found wiping their armpits with and without soap in Greyhound bus terminals.
Hydrogender by Uncle Slingo October 23, 2018

hydroponic weed

Water grown weed. While other weed is grown in soil. Hydroponic weed is also really strong.
Let's get some Hydroponic Weed , I heard it's stronger than what we normally get.
More from Urban Dictionary

piddlefart

verb. To waste time doing nothing.
Instead of doing my homework, I decided to piddlefart around for two hours.
piddlefart by Rene April 25, 2005
Word of the Day on October 9, 2026
anyone who succeeds in disgracing/over indulging themselves in the throws of clubland
28 hours and 4 clubs later, gurning for england but still refusing to go home - a total wrongun!!
wrongun by bevvers March 21, 2007
Word of the Day on October 8, 2026

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
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