Uniballa 

When a man with one testicle inserts his testicle into a womans vagina.

Nate: Hold on...Its almost in...
Heather: Uh oh the uniballa strikes again!!

Uniballa by Uniballa June 14, 2010

uniball 

a man only having one testicle

Stevie K has is a uniball because he only has one testicle

uniball by mogger05 December 22, 2004

Uniballer

person with only one testicle i.e: josh scanlon

anyone: sup uniballer!
josh scanlon; :(

Uniballer by MaverickDaNubRippinBaddie February 24, 2008

uniball 

to hit someone so hard in the nuts that their testicles fuse together into one. essentially its a really hard sackwhack

if u dont shut up im going to uniball you

uniball by herpderp123 August 24, 2010

uniballer

a legendary pimp who wanders the town at night pimpin you hos and leaves his mark by dippin his one and only testicle in a can of blue paint, swangin it up and slapping his victims with it. The paint can never be washed off.

damn the uniballer pimped jaimes mom last night!

uniballer by S-Sizzle April 19, 2006

uniball 

A pen making company

I have a uniball pen, and my friend thought the pen only had one ball

uniball by duhhh June 21, 2004

uniball 

An odd attraction in the form of a online game that draws out all nerds, geeks and people who generally don't shower.

I'd rather clean out the crabs from my pussy with a rake than to play another second of Uniball.

uniball by NickW June 10, 2004