A term used by a sniper and his spotter. The designated term for the snipers scope or the spotters scope when looking downrange.
Sniper: "On Glass" (signaling that he is looking through the scope

Spotter: Roger, standby
by okipiratemonster February 12, 2009

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transparent material often found in windows, refrigerated display cases for food and beverages, which, when it is used in a scene of a Steven Seagal movie, will cause a fight to occur and which will be shattered by human heads and bodies.
by Billy January 26, 2003

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Surf term for the inside of a perfect pipe. To get glass is to (while shooting a pipe) to run your hand through the back of the wave to distrub the almost completely undisturbed curl of wave.
Dude that pipe is total glass.
by Rickman69 March 04, 2005

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to totally destroy something with REALLY big guns and stuff (representing the ground being heated and fused into glass)
the americans glassed hiroshima in 1945
by shadow sword April 02, 2004

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A mirror without a backing.

-refer to wood, metal, plastic, ceramic-
1: Oh look at my new mirror.
2: It's got no backing, its just a piece of glass.
by Melancholykills August 11, 2009

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slang term for a bowl (a glass pipe used for smoking weed)
(at a music festival) "Hey, where'd that bowl vendor go, I need some new glass"
by pothead May 20, 2004

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Glass in the common sense refers to a hard, brittle, transparent solid.
Such as used for windows, many bottles, or eyewear, including soda-lime glass, acrylic glass, sugar glass, isinglass (Muscovy-glass), or aluminium oxynitride.
by Blake Dorner March 20, 2008

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