This exactly answers my question. Thanks a lot for letting me understand this reference. You are awesome.Welcome to the forum, rak.
That isn't much context. Can you provide more? Where did you see this sentence?
It makes me think of the current campaign for the presidency in the US. Many voters are discontent with their circumstances and blame members of the political establishment. They may also be angry with the members of the pack of candidates running. A member of the pack can exploit this anger by insulting the other members. If the content of the insult coincides with the substance of the discontent, it can move a candidate forward in the polls.