look up any word, like bukkake:
 
2.
JACOBY--ONE HOT MTV HOST FOR THE KICK-ASS SHOW SCARRED!

A PERSON OR THING THAT EVERYONE WANTS TO BE LIKE. SOMEONE OR SOMETHING THAT MAKES PEOPLE LAUGH. SOMETHING THAT EVERYONE MUST HAVE AT LEAST ONE OF. A DRUG THAT MAKES YOU FEELS GOOD.
A REALLY HOT GUY THAT ALL THE GIRLS GOT TO GET WITH.

I WAS FEELING LIKE SHIT, THEN I TOOK A JACOBY AND HAVE FELT GREAT ALL DAY!

DID YOU SEE THAT JACOBY, I HAVE GOT TO GET ME ONE OF THOSE!

I WAS HAVING A SHITTY DAY UNTIL I HUNG OUT WITH JACOBY.

by YAPMO1 February 28, 2009
 
1.
JACOBY

A PERSON OR THING THAT EVERYONE WANTS TO BE LIKE. SOMEONE OR SOMETHING THAT MAKES PEOPLE LAUGH. SOMETHING THAT EVERYONE MUST HAVE AT LEAST ONE OF. ALMOST LIKE A DRUG THAT MAKES YOU FEELS GOOD.
THE WAY COOL HOST ON MTV! A REALLY HOT GUY THAT ALL THE GIRLS GOT TO GET WITH.

I WAS FEELING LIKE SHIT, THEN I TOOK A JACOBY AND HAVE FELT GREAT ALL DAY!

DID YOU SEE THAT JACOBY, I HAVE GOT TO GET ME ONE OF THOSE!

I WAS HAVING A SHITTY DAY UNTIL I HUNG OUT WITH JACOBY.

by fuah666 February 28, 2009
 
3.
Having an over active underarm sweat gland.
I've got such serious jacobies that my dermatologist gave me prescription strength antiperspirant.
by TheGuinnessTooth December 11, 2006
 
4.
Total Douchebag that no one likes. Will go out with a girl and be a total asshat to her bestfriend. Breaks promises. Says they will try harder and try less.
Jacoby: I promise to tell her best friend before I break up with her.

*breaks up*

Bestfriend: What. The . Hell.
by IRantForFun October 22, 2011
 
5.
A man or young boy who thinks he has a large "thing" but when it comes down to it, he just has a small, acne infested package. He mine as well just swim in grease, it will do his thriving acne some good.
Ew, who would ever want to go out with that hideous Jacoby?
by jackieejackson5 July 10, 2008