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1. A sexual activity involving an elderly woman having her way with the male's genitalia

2. Another way to say that a person's work was not to expectation, and usually done out of laziness
Mike: yo Derek shes so fine i just want to do her

Derek: yeah I guess, i like older women though, im into those Granny Jobs

Mike: oh wow


Nico: hey mark, this is not what I was expecting. What you have done here looks like a Granny Job

Mark: I did my best. I could start over if you want?
by ddrop213 October 27, 2011
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