A mound of a homeless person's feces with used syringes sticking out of it for unknown reasons. Most commonly found in California cities but also seen in places Californians are known to migrate to such as Seattle, WA and Portland, OR
Hey man, watch your step when jogging on Lombard street, I saw some San Francisco Porcupines on my way up here.
by LungleJove February 12, 2020
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San Francisco's baseball team, who for 58 years battled season after season of heartbreak until finally becoming World Series Champions in 2010
Joe: Who are the San Francisco Giants?
Frank: Tim Lincecum, Edgar Renteria, Buster Posey, Huff Daddy, Freddy Sanchez, Uribe, Brian Wilson, Javi Lopez, Matt Cain, Andres Torres, Pablo Sandoval, and even Aaron Rowand!
Joe: I still don't get it.

Frank: They're the goddamn World Champions man! We did it!
by Datafiles November 10, 2010
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The act of tucking your penis back and then proceeding to jerk yourself off from the back while your thumb is extended into your butthole.
Ray was feeling frisky today, so he tucked it back and gave himself a good ol' San Francisco Hitchhike.
by kct September 26, 2014
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Before you start laying that tile in the kitchen, put on your San Francisco slippers so you don't hurt your knees.
by cspri May 29, 2006
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The act of a man kneeling on all fours and his having partner blows air onto or into his asshole, taint, balls and penis.
"Hey after we eat these subway sandwiches, let's go back to my place and you can give me a good, old-fashioned San Franciso windchime."

I was promptly thrown out of the respectable massage parlor for asking the masseuse for a San Francisco windchime.
by Bearbat April 25, 2015
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The act where two homosexuals forcefully try to convert a third individual.
Bill and Joe were carefully approaching Bob from each side of the bed. Bob, unaware, was now becoming a victim of a San Francisco Sandwich.
by Skamuf March 29, 2008
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Clifton made Hammetter put his San Francisco Sandals on before he sucked Cliftons dick.
by lcaf October 1, 2006
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