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A female coworker who thinks she's the boss but she's not. She dresses like your grandma.
Dude, that chick's on the war path. And what's with her clothes?

Oh, that's just Grandma Boss.
by ManRanger September 27, 2007
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A grandma that is the boss of her own life, work, or play... she's a grandma boss! Your new and improved latest 21st century model.
She really knows how to rock her new role as a grandma boss!
via giphy
by 1team September 03, 2016
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