When an electronic component, computer component, or other piece of technology is associated with erotica, reproductive organs, or other sexual reference.
It can also be used to describe the use of technology based processes in sexual innuendo.
John mentions in conversation a reference to his computer dongle. Linda replies with "I don't really want to hear about your dongle John," insinuating he is referencing his genitalia.
A woman says to a male, "I've got an open USB slot if you would like to plug your device in," cleary insinuating sexual intercourse.
"The way that connector plugs into that slot is very techno-erotic."