A defense against bores.
From Italian para-, from verb parare 'to ward or defend, to cover from, to shield, shroud or shelter + bore 'that which bores.'
Parabore is actually a nonce-word.
We've all heard of parasols, parachutes and parapets, but one day I hope to have a parabore - the perfect item to defend against the boring people I meet on public transport, waiting in lines and at the pub. And, especially, at work!