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When a teacher's (or anyone for that matter) glasses are so thick that it appears they're made of fiberglass.
We could barely see her eyes peering through those fiberglasses.
by J.Robbins January 21, 2007
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2
Stronger than steel.

A material when launched at over 300 mph can penetrate and destroy Steel columns.
Orlando: 911 showed that fiberglass can cut through fucking steel.

Me: Super Man is nicknamed man of steel, should be man of fiberglass because thats apparently tougher than steel.
by rickya209 May 16, 2014
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