OBS

Stands for Old Balls Syndrome. It's when someone can't perform a function due to old age or general ineptitude.

Lance was diagnosed with OBS, he can't drive at night anymore.

by supramaj October 12, 2008

Mexican Umbrella

Any, literally ANY, object other than an actual umbrella that can be used as a shielding device against precipitation. Preferably something planer.

"Hey look, Pedro is crossing the street again with one of his Mexican Umbrellas!"

by supramaj January 10, 2012

OBD

The advanced form of OBS.

Lance's OBS is advancing into OBD, he didn't wear pants to work today.

by supramaj October 11, 2008