Top definition
A female aged 20-30, in an attempt to look business like wears a pencil skirt, high heels, and tight fitting shirt. Generally strut about on their lunch hour looking important but we all know they love it in the back door. Office Gash normally ramps up in the summer months for some unknown reason.
John: Jeez!! Dude where have all these women been hiding.

Dave: Tell me about it, the sun really does bring out all the Office Gash!!
by blathman June 08, 2011
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