Named after the
popular television/comic series, Smurfing is the act of putting your partner in some sort of choke/sleeper hold while having sex until their face turns blue. At this point, you pull out and finish off by proceeding to give your blue-faced partner a droopy white cap.
For added effect, you can let
loose a cackle similar to Gargamel, the evil villain also from the
popular 80's television show.