What is Upd?
1.
In unicycling, an unplanned dismount. Not a fall per se, but something that causes you to step off or otherwise end up off of the unicycle without any injury or dramatic falling.
Unseen bumps can cause occasional UPDs, but as riding ability increases, chances are you will just have the shit scared out of you.
2.
University Police Department. The name of the police department in all of State University of New York schools.
I hate the UPD because they always give out parking tickets for stupid reasons. They should be trying to curb the rape rates instead.
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3.
Upland Police Department. (upland California). also U.P.D
all skaters must wear pads and helmet while in the skatepark or u will be cited by UPD
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