Mcleans Active Mouthwash [00:20]# A smarmy master of ceremonies appears on a tacky stage and proceeds to recite the kind of limerick which is bound to end in some dirty pun. Before he comes to the offensive line, however, he takes a swig of McLeans mouthwash – guaranteed to clean the foulest of mouths – and ends the limerick in a fashion that makes the spot safe for family viewing.