A convivial gesture made in the final moments of a meal as a statement that the fellowship on that day be forever remembered, and as a fervent expression of gratitude for the company present. A male, usually the host, will lay his penis on the unfinished portion of rice in the plate of the nearest female.
Tony got so drunk and emotional at our annual Sunday school luncheon that he felt it necessary to slap cock to the rice.
by Joe from Brooklyn March 10, 2008