Definitions by magicmanHAWKEYE

Sanfrancisco Waterfall 

The act of urinating in female's Anus. This is a term that can be commonly used to replace the saying, "I'd pee in her butt", if a female is, in fact, attractive.

I would give that girl a SanFrancisco Waterfall.

Sanfrancisco Waterfall by magicmanHAWKEYE December 16, 2011