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One of the main characters from the cartoon Invader Zim. Dib is a young boy who dreams of being a paranormal investigator when he grows up, even though his father, a world-famous scientist, wants him to study 'real science'. When the alien Zim appears at his school with plans for world domination, Dib is often the only one who can stop him. Unfortunately, no one else realizes that Zim is an alien, so they all think that Dib is insane.
"Yeah, what's wrong with you? All you talk about is aliens and ghosts and seeing bigfoot in your garage!"
"He was using the belt sander... "
-- from "The Nightmare Begins"
Dib by Tash Dragon November 25, 2004
Related Words
dibs dibble dibby DIBLY dibbs diba dibber Dibble Dabble dibbo dibdab
A mini dab done with the thumb and index finger. Done when a dab is not appropriate or sufficient. Multiple dibs consecutively are not only permitted but encouraged.
Adam dabbed the other day and dislocated his shoulder, so now he does a dib for the sake of safety.

"dib dib dib"
Dib by dibdibdib February 19, 2018
A secondary character on Invader Zim who's only goal in life is to prove to the world that Zim is an alien. He also has very pointy hair. And a big head.

funny show.
Zim: I don't like Dib. He smells.
GiR: tacos
Dib by Burnt Bean Burrito April 30, 2020
my favorite character on the show Invader Zim. dib is a boy in zims class who is obsessed with the paranormal. dib lives with his famous scientist dad, professor membrane, and his little sister, gaz. he is the only one apart from gaz who knows zim is an alien. even though he tries infinite times to prove to everyone zim is an alien, they never believe him and just think hes insane. he has black hair, glasses, and a long black coat.
person: whats wrong with you? all you talk about is aliens and ghosts and seeing bigfoot in your garage!
dib: he was using the belt sander.
- episode the nightmare begins

FBI: hey.. your DIB... right? hehe.. you ever get that ninja ghost outta your toilet?
dib: yes! no thanks to you!
-episode zim eats waffles

dib: (sprints into classroom) sorry im late! horrible nightmare visions!
mrs. bitters: its called life dib, now sit down.
- episode halloween spectacular of spooky doom
dib by x.:invader jenna :.x August 20, 2010
Stands for Dirty Irish Bastard. Refers to lewd middle-aged drunken people hanging around in Dublin youth hostels.

Gradually applied to people from other nationalities as well:
DFB: Dirty French Bastard
DAB: Dirty Australian Bastard
etc.
That DIB spent the whole night drinking wine from a plastic bottle and burping. In the dorm.
DIB by Clem v4 September 1, 2008