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1) n., one who gets left behind for the benefit of other people

2) v., to leave someone behind so a different group can find him/her
1) Guy 1: Hey, where's John?
Guy 2: You know that really annoying girl?
Guy 1: The one from Math?
Guy 2: Yeah, we ran into her earlier. He went with her over to a hot dog stand and we ran.

Guy 1: Oh, poor jacco.

2) Quick! While he's in the bathroom, let's jacco him! Nic and his gang'll be around sometime today.
jacco by CDoodles June 5, 2009
Related Words

Jacco Balls

enderman's balls. Also reffered to as ender pearls
"these Jacco Balls are so smooth and shiny!"
Jacco Balls by JaccoLover69 September 6, 2022

Jacob Reed 

Man, Jacob Reed is too crazy.
Jacob Reed by Demon the mistical pony December 31, 2011

jacob bae 

men sucks except this one he's fine. actually he's amazing and he's literally good in everything he does list it down singing dancing playing instruments basketball volleyball being a stuntman EVERYTHING. he even got good manners and very nice towards other human beings. and nice smiles. and he's a whole ass visual too. i love him you should do too. and he thirst traps. but it's fine i guess.
oh my god jacob bae **surprised noises**

i really love jacob bae
jacob bae by kevin best boy August 23, 2020

jackoff buddy

A friend who helps you with mutual masturbation, usually male-on-male.
A jackoff buddy promises a more limited repertoire than a fuck buddy.
jackoff buddy by al-in-chgo August 4, 2012

Jacob P. Galvatron

Also known as Megatron, The Ghost aka The Phantom Menace, JPG and Stormtrooper #1.

Leader of the Decepticons and the biggest drugs ring on Cybertron. Known to be involved in the smuggling of Tijuana Iguana and Diesel. Was once caught having a naked knife fight with Galactus by The National Enquirer.

Before becoming a galactic drug dealer, he worked as a prop gun on "Bonanza" and was thrown off the set of "The Crow" for killing Brandon Lee.

Jacob P. Galvatron is known to be an associate of Mack Daddy Wave, Fabio and Ricardo Montalbahn. Dislikes Connect Four and Optimus "Prime Time" Prime.

Jacob P. Galvatron was once romantically involved with Rosie from "The Jetsons". They had a son called Johnny 5.
Hurricane Katrina ain't got shit on him if we are led to be believed.

His adventures were chronicled in My Way Entertainment's "Transformers".
"Stormtrooper #1 aka your boy, JACOB P. GALVATRON!"
More from Urban Dictionary
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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