← BackshareGuessnosh up/ˈnɑʃ ʌp/nounA large, satisfying meal; a feast.The family gathered for a Christmas nosh-up with all the trimmings.We had a proper nosh-up at the restaurant for my birthday.After the hike, everyone enjoyed a big nosh-up around the campfire.SynonymsbanquetfeastspreadAntonymssnack