The act of having your Partner lay down underneath a tall table while you stand on top of the table naked and without warning you attempt a backflip off the table and try to land inside your partner.
This will usually end in a broken dick and a ton of screaming.
Extra Points for actually making it in your partner.
" Dude I saw the Ambulance at your house last night, what happened?"
" I tried to do a south african backflip, but I missed.