But here's a jimmy joke about your mama that you might not like
I heard she was the 'Frisco dyke
The punchline is that he is saying that his mom has a dick. There is also the double entendre of the word “jimmy,” which in this case could be referring to the name “Jimmy.” So basically, Snoop is saying that Tim Dog’s mother is dude and has a dick.
He hammers it home that Tim’s mother is a lesbian from San Francisco.
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