Top definition
a man only having one testicle
Stevie K has is a uniball because he only has one testicle
by mogger05 December 22, 2004
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2
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
by herpderp123 August 24, 2010
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4
I have a uniball pen, and my friend thought the pen only had one ball
by duhhh June 21, 2004
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5
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.
by NickW June 10, 2004
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7
Having one testicle inside of the scrotum instead of having the usual two. This normally produces half the amount of semen as having two.
Dave lost his testicle in an accident so he then had a uniball
by Don March 20, 2003
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