The process of trying to check your email from inside a moving vehicle using public wi-fi. This requires (1) finding an open wi-fi network, (2) logging in to the network using DHCP, and (3) frantically trying to check your email or surf the web before the signal is lost.
Typically done quickly while at a stop light mostly out of curiousity and boredom and hopefully without picking up a virus (not unlike something one my try while visiting a brothel in Amsterdam).
I don't think that geek can ride the bus home without emailing Amsterdam. He needs to unplug.