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1.
When a female is dressed so as to display her titties prominently, it is said that she is "on the glass" or her titties are "on the glass"

~OR~

An exclamation stated when a woman has obscenely large tits
Damn! Did you see how hot Renee looks? She is really on the glass tonight!
by halonhorns January 29, 2009

Words related to on the glass

titties boobs dressed glass large