To taunt or otherwise heckle canoeists, rafters, kayakers, etc as they make their way down a river. Especially fun near river hazards that can cause navigation difficulties. Taunts may be concealed by referring to them as professional canoeists/rafters/kayakers before starting any detailed heckling. For some reason the sarcasm is rarely noticed. To maintain good river relationships each heckle session should be terminated with a "Job well done."
1)Prototype River Heckling dialog usually goes like this: Here come some professional kayakers. Look how they handle that craft. Job well done.
2)River Heckling occured from the banks as the "professional" rafters paddled by.