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Ball-Tracker 

A particularly useless person whose attempts to contribute in a group effort often hinders or doesn't contribute to the success of the group; ball-trackers fake work to get credit or to avoid of the consequences of doing nothing; originated as a pinball term when there are three people who all want to participate (one right flipper, one left, one ball-tracker who follows the ball with his finger)
"I'll be right flipper, James you're left, and Jacob, if you really wanna play you can be ball-tracker."
Ball-Tracker by gypsy disc March 23, 2016

mud tracker 

when a white person brings black people along with them to a party where the black people are not wanted
"Biz is such a mud tracker"

"I know, she always brings her black friends to our parties"
mud tracker by Clayton Bigsbie August 13, 2007

tracker jacker

Genetically altered wasps that are coded to attack anyone or anything that disturbs their living. When they make that person a target, they will follow their target until they are stung. Stings from the tracker jacker are extremely painful and cause serious hallucinations. In extreme cases, it cause death. Tracker jacker venom can also be used to hijack a person's memories. The venom creates hallucinations upon the memory and the memory is then seen differently by the person. From The Hunger Games
I can't believe the Capitol used tracker jacker venom on Peeta!!

How did Katniss survive those painful tracker jacker stings?
tracker jacker by HungerGamesLuver November 11, 2012

Ballistics Tracker 

A terrible attachment is the ROBLOX game Phantom Forces. Basically tracks the enemy's head for a clear head-shot.
John: Oh shit i just got the BFG 50

Tom: donlt put the Ballistics Tracker on it, or you'll go to hell!

Geo Tracker 

Quite possibly the most versatile vehicle out there. Perfect for off road, top down driving, economy, and fun.
That guy sure looked like he was having fun driving. What was he driving? Oh, a Geo Tracker.
Geo Tracker by Car Maniac October 1, 2009

buddy tracker 

This is the most annoying thing ever! It's a program on AIM that allows users to see who views their profiles and always pictures you as the #1 spot on who views it most. It makse you feel like a stalker and should be banned.
People who read my profile:
1:
2:
3:
4:
...

Add this to your profile...
(Brought to you by buddytracker.us)
More from Urban Dictionary
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
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026

Slop Grenade

When someone uses AI to generate a large document, slide deck, or piece of code/software and tosses it over the fence for you to deal with.
Chad: Hey Brent I sent you the new backend API change to review, it’s only 100 files changed.

Brent: he just tossed me a slop grenade
Slop Grenade by Joe Squid September 28, 2026
Word of the Day on September 29, 2026
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