Extraordinarily large glasses usually worn by your uncle or poor people. These glasses are often times much larger than the person's face. They have been known to lead to heavy indentations on the bridge of your nose.

background- Everyone has that uncle that wears those big ass glasses that are way too big for anyones good and covers their enite face. these are referred to as Uncle Big Glasses.
Damn, it's 2009 and Robert is still rockin those U.B.Gs, they big as HELL! You would think he would have upgraded to contacts by now.
by DaEaHo December 17, 2009
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