The new GNU/Linux and MacOS drivers for the network addressable "teledildonics" sex toy, the TranceVibrator, can be controlled via the finger daemon, "bringing generations of CS undergrad innuendo full circle."
This program is a rudimentary teledildonics application built around the finger daemon – hence bringing generations of CS undergrad innuendo full circle.
It has two modes in addition to what you're seeing now – if you finger [any string]@[this host], a series of random pulses will be generated, proportional to the length of the string.
Alternatively, fingering 0x[hex digits]@[this host] will instead send a direct stream of motor speeds to the vibrator, one per second.
(via JWZ)