Sealioning (also spelled sea-lioning and sea lioning ) is a type of trolling or harassment which consists of pursuing people with persistent requests for evidence or repeated questions, while maintaining a pretense of civility.    It may take the form of "incessant, bad-faith invitations to engage in debate."  The troll feigns ignorance and politeness, so that if the target is provoked into making an angry response, the troll can then act as the aggrieved party.   Sealioning can be performed by a single troll or by multiple ones acting in concert. The technique of sealioning has been compared to the Gish gallop and metaphorically described as a denial-of-service attack targeted at human beings.