Oma tuxedo 

A shirt, whether it be a tee shirt or button up shirt with the sleeves cut off. Normally worn by the inhabitants of a very small community in the great northern Wisconsin region. Typically worn with shorts as the weather is usually warm in the summer and sometimes worn with some gay looking leather sandals and a baseball cap worn backwards.

Hey there is so and so he wore his Oma Tuxedo to the picnic again.

Oma tuxedo by Syntheticop November 9, 2010