The sexual act of being penetrated in the ass by your partner's dildo while they are simultaneously giving you a handjob. Resembling the cocking of a shotgun.
Carrot Top gave Pauly Shore a nasty San Fran Shotgun last night
by Krusty Krabs March 8, 2012
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Another great euphanism for shit. You can't really have too many of these can you. This can be used in either a constipated or a gay context, so it's quite flexible. Shit is one of my favorite words, so I made up a couple like this gem here. Enjoy!!
Man there a gay couple, so they always have to work around the San Fran Roadblock before having sex.

or

I'm so constipated I feel like I got my shit packed like a San Fran Roadblock!
by Robert A September 18, 2005
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two guys are making, in the "doggy style" position out while being buttfucked. It takes four people to make a san fran bridge
by .................cgmhj November 3, 2006
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This involves 2 males laying on their sides, ass to ass and facing opposite directions with each others balls tucked into the others asshole and wrapping the legs around the hips of the other. Jack off to completion.
(Configuration: 1 male laying on his side facing east, 1 male laying on his side facing west, balls to butthole exchange, hook legs around hips of the other involved, thus imitating a square knot)
“Jerry and I tried out the San Fran Square Knot last night and when jerry nutted first his asshole squeezed my balls so hard I thought they were gonna burst”
by Angry Mechanic April 25, 2021
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When in a men's urinal a stranger or lover comes up behind the pisser and massages the shoulders or ass to ease the tension and allow for a more exciting release.
by The inventor December 12, 2005
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The aura & accent that folks return from a week in San Francisco with. Sort of the sound when you mix an E with an A & U.
Ever since Alix visited San Fran she’s been calling it San FranciscEauuuuu, she must have San Fran Syndrome!
by Gongbanger February 21, 2023
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