mash1 /mæʃ/ (
also mash up)
verb [transitive] to crush something, especially a food that has been cooked, until it is soft and smooth:
Mash the bananas.—masher noun [countable]:
a potato masher [TahlilGaran] Dictionary of Contemporary English ▲
ˈmash-up noun [countable] a piece of music, a video, a website etc that uses parts of two or more pieces of music, videos, etc:
a mash-up of two dance tracks [TahlilGaran] Dictionary of Contemporary English ▲