The original meaning referred to the act or process of turning aside or moving to an alternate course.
A railroad switch or a low-resistance connection between two points in an electric circuit that forms an alternative path for a portion of the current. Also called bypass and with
medicine, a passage between two natural body channels, such as blood vessels, especially one created surgically to divert or permit flow from one pathway or region to another; a bypass. Over time the meaning has evolved and is now a popular slang term..
A term used to shorten the title "Shit cunt
Also can be used as another form of telling someone to "Shut up cunt".