by Dutch Tulip February 8, 2010

by ryan6976 January 25, 2009

The sexual act in where the male smokes a cigarette, cigar, ect. and uses the females vagina as an ash tray until the object being smoked is completely gone. With the ashes still in the females vagina, the male fucks her as hard as he possibly can.
Guilanna got pissed last night because her pussy got burnt when we were doing the San Diego chimney.
by the cafeteria February 4, 2010

by papayacutter July 12, 2009

When two men (most likely) put each other's shit into one anothers asshole,like an alabama hot pocket.... disgusting yes, funny, maybe a little.
"I was told Tim and Clark did a (San Francisco Microwave) last night."
"Well honey, eww, and I'm a straight man I don't care for gross woman gossip."
"You should be more nice to me on my birth day!"
"It is!?!?!"
"Yes!"
"Well how about you give me one and laugh and well, not divorce me."
"YAY!"
"(sigh)."
"Well honey, eww, and I'm a straight man I don't care for gross woman gossip."
"You should be more nice to me on my birth day!"
"It is!?!?!"
"Yes!"
"Well how about you give me one and laugh and well, not divorce me."
"YAY!"
"(sigh)."
by Skeeter~Bob January 22, 2011

Similar to the Houdini. When doing your girlfriend doggie-style, you switch out with your buddy. Now, instead of heading outside to wave to your gf, you turn around and stick it in your buddy's ass. Since everyone in SF is either openly or a closet homo, this is a treat for everyone!
by norcalsrt March 28, 2009

The act of two males masturbating with one another and ejaculating at the same exact time. The result is the ejaculated sperm colliding with one another.
This should not be confused with a "San Franciscan Kiss", which is similar, but one male ejaculates into the urethra of another man during or before the other male's orgasm.
This should not be confused with a "San Franciscan Kiss", which is similar, but one male ejaculates into the urethra of another man during or before the other male's orgasm.
"Man, did you see Jack & Terry's room?"
"Yeah. It looked like a pulled a San Franciscan Pileup on the place!"
"Yeah. It looked like a pulled a San Franciscan Pileup on the place!"
by I'm not giving you my name D:< March 22, 2009
