Slangipedia - Slang Dictionary

1

a brainless piece of trash who gets even more brainless over time

My cousin is a jackball. He failed math and still thinks he's smart.

That guy at the gas station is a jackball. He tried to steal my credit card and failed.

My dog is a jackball. He eats my shoes and thinks he's winning.

2

a stupid person who somehow becomes even more stupid as time goes on

My teacher called me a jackball because I drew on the whiteboard with my feet.

My brother is a jackball. He thinks he's a rock star and sings in the shower.

That kid at the park is a jackball. He tried to fight a pigeon and lost.

3

a knucklehead, a fool, a complete waste of oxygen, pick your favorite insult

My neighbor is a jackball. He yells at the mailman and thinks he’s the king of the block.

My mom called me a jackball for eating cereal out of the box.

That guy on the bus is a jackball. He thinks he's a detective and talks to the seats.

4

to jackball is to sneakily steal something small and feel smug about it

He jackballed my lunch money and now he’s eating my sandwich.

She jackballed my phone and sent me a text that said, 'You're a jackball.'

He jackballed my snack and now I have to eat my feelings.

5

when someone puts a jack-in-the-box on your car antenna without asking, and it was stolen from someone else

A jackball happened to my car. Now I have to listen to a disco song every time I drive.

My friend got jackballed. He had to take the box off his antenna at 2 a. m.

I got jackballed. Now my car sounds like a party.

6

when you get so mad that you act like a brainless idiot and make everything worse

I got so mad I became a jackball. I threw my pizza at the TV and it broke.

She got jackballed because she yelled at a robot and it started crying.

He got jackballed and turned his dog into a sandwich.