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The explosive regurgitation of semen acquired during a long bout of oral sex with multiple partners.
I was number twelve in line, so I knew I had to get off quick before she gave me the guyser.
Guyser by Ol' Derty Sanchez March 10, 2007
Related Words

gooey guyser 

when a guy cums in a girls mouth she swallows he sticks it in her pussy and she pukes it back up
i had to clean up the floor because my girl friend pulled a gooey guyser
gooey guyser by Bob Mcfish June 3, 2007
Hey Peck, How was Thailand?

Great! I got a Gumser from one of the lady-boys.
Gumser by Rotten40 November 20, 2011

Geyser Plugging 

Exactly like "prairie dogging" except for diahrrea. It is when you are holding in a violent case of the diahrrea shits, kind of like plugging a geyser.
Holy shit I am geyser plugging so badly right now, I need to get to a bathroom ASAP.

mac guyver'd 

To put something together using useless bits and pieces in the most far-fetched way
I've macguver'd myself some socks using a squirrel , a dohnut and a few paperclips

premature geyser 

When you bust a nut so high and powerful that it lands on your face and in your mouth
Bro ,I have such a bad taste in my mouth from that premature geyser I had yesterday.
premature geyser by RyanLee1224 November 15, 2017
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
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