Marmitenoun [ U ]
/ˈmɑː.maɪt//ˈmɑːr/trademarka brand name for a type of soft, dark brown, salty-tasting food for spreading on bread, made from yeast, that is popular in the UK
UK informal something or someone that some people like very much and other people dislike very strongly:
He is something of a Marmite presenter - you either love him or you can't bear him.