The Californian Windpipe is a maneuver in which a female (or sometimes a male) puts any sort of flute, piccolo, wind blown instrument into either:
exhibit a; the vagina
or
exhibit b; the ass.
They then proceed to fart/queef and perform a somewhat artistic piece of work.
usually followed by excessive cleaning of the instrument,
or if it isn't theirs, placement back where it came from.
very difficult maneuver with very few masters.
Dude, i played Marry Had a Little Lamb by doing the Californian Windpipe.
To become part of California, or act like one, etc.
The choice of whether or not it should do with fornication is entirely up to the one that is Californicated.
Basically you and your partner both take a shit and you pick up the two pieces of shit and slap them off of your partners ass while screaming Californian Drumset