I can't believe that until now there's no definition.
Speed Sex is getting drove on large amounts of methamphetamine (speed) and having marathon sex featuring all sorts of strange, kinky, unusual acts resulting in a series of intense rushes that are equal to a regular orgasam and culminating in a hands-over-your-head rollercoaster death-drop mind blowing orgasm (hopefully). Hopefully because that big one can be very elusive and you might not get it but if you do... oh boy. Even if you don't it's still an E-ticket ride.
We locked up in a room for two days having speedsex.
Purchasing multiple cakes with multiple people whether it be chocolate, cheese, raspberry, etc... taking a bite of one and rotating either to your right or left in a timely manner until each persons soul is completely satisfied with sugary goodness, and the plates are licked clean.
Last night at Cafe Intermezzo we speed caked into a sweet oblivion!