Players usually stand around in a circle (or semi-circle) discussing random topics and randomly a player will try to "bing-bong" another by taking a strike at their genitals. The game attempts to make use of several diversions, such as riddles or jokes to distract players.
"Bangkok!" (strikes opponent)
"I wrote you a poem..."
"Roses are red,"
"Violets are blue,"
"BING-BONG!" (strikes opponent).
More recent times; Dude, I can see your Bing Bongs, not cool.