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Jacobian 

1. A mathematical transform involving partial derivatives in college vector calculus courses.

2. The mortal enemies of the BasILL face that have alliances to Reimann Sums and Laplace Transforms. Syn: Porcelli.

3. Any person, thing, or situation that stops at nothing to slow you down, mess you up, or give you (or any BasILL) random unexpected grief.
"Yo man that 416 forecast was total Jacobian"
hahah I know man the Linux side was all messed up

OR

"Haha how'd you do on that Math230 exam?"
Yo man nothing but tru BasIll on that joint, the Jacobians didn't stand a chance
Jacobian by Carl A. Jacobi April 26, 2006

jacobitis 

Someone who gets mad really easy.
I was poking Drew and he got mad. He suffers from jacobitis.
jacobitis by Saul the god September 5, 2017

jacobite111 

Jacobite111 is when a gamer starts playing really badly like he is on mobile. Nothing has changed but the gamer has not played in a while so is a little rusty and gets salty very easily!
'Ninja is playing like Jacobite111'
jacobite111 by TwinSync March 8, 2019

Jacobites 

means the followers of jacob in Scottish, but now is just the coolest last name to have.
Yeah! She MUST be a Jacobites!
Jacobites by 77annie77 June 15, 2011

Jacobitti 

Research shows that the Italian surname Jacobitti is of patronymic origin, deriving from the personal name of the father of the original bearer. In this instance the surname derives from the name Jacobitto or Giacobitto, a variant of Iacobo, or Jacob, which ultimatley derives from the Hebrew term "akew," meaning "heel," representing the belief that Jacob is said to have been born holding onto Esau's heel. Since the final letter "o" of the Italian surnames frequently changed to the letter "i" when the surnames were passed on from one generation to the next, the meaning of Jacobitti may be interpreted as "son or descendant of Jacobitto", a name which contains the diminutive suffix "-itto". It should also be mentioned that surnames beginning with the letter "J" are primarily found in Southern Italy.
The name Jacobitti comes from Italy.
Jacobitti by horse_whisperer90 April 22, 2009

jacobina 

Dumb person who does not know what they are talking about. Usually is a very egotistical person with a negative IQ. Can be seen loitering around street corners trying to find their way across the street. Beware: Dangerous if provoked.
AHH! It's another Jacobina!
jacobina by Bobina =] September 29, 2006
More from Urban Dictionary
The number of years you are still sexually active
While our lifespan is the number of years we will live, our healthspan is the number of healthy years we will have and our sexspan is is the number of years we will continue to be healthy enough to continue having an active sex life.
sexspan by Dr Kat April 21, 2022
Word of the Day on October 28, 2026
A lighthearted reaction upon receiving disappointing news of some sort. Usually something that isn't a particularly a big deal, esp. when it primarily affects someone else - sort of a mild schadenfreude. Sometimes doubled or tripled, and possibly said in a sing-songy voice for added comedic effect to imitate a muted trumpet, which is how the meme originated.
You didn't get any napkins with your takeout pork fried rice? Womp womp.
womp by 175623226 November 3, 2011
Word of the Day on October 27, 2026
When your wife’s boyfriend let you sleep past 8pm 😎😎
Wife’s boyfriend: You have 5 more minutes
Me: Poggers!
Poggers by Just_Charles April 14, 2020
Word of the Day on October 26, 2026

Oblication 

A vacation, feeling more like an obligation, that involves visiting or staying with family.
So Joe where are you taking the kids for spring break vacation? We are going on an oblication to Boca to visit my mother-in-law.
Oblication by kimmerr May 5, 2011
Word of the Day on October 25, 2026

Surf Dracula Syndrome 

A phenomenon in film/television series, most notably streaming series, where the main premise is drawn out to such a point that it takes an entire season or more to get the parts of the series the audience is actually interested in seeing.

For example, if a series is titled "Surf Dracula," a majority of viewers would tune in expecting to see Dracula surfing by the first or second episode. However, the entire first season would instead be tedious padding and backstory before finally ending with Dracula surfing in the last five minutes of the season finale.
I watched "Smallville" on Netflix the other day. Dude, it was ten seasons of filler before he finally flew! Major Surf Dracula Syndrome!
Word of the Day on October 24, 2026

Northstarring

Finding your way back to the truth by fixing on one verified fact and working out from there, the way you navigate by the North Star when everything around you is spinning.
Rumours were flying everywhere, so she went northstarring — one checked fact at a time.
Northstarring by Light Bearer October 22, 2026
Word of the Day on October 23, 2026
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