ˈmash-up BrE AmE 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
ˈmash-up BrE AmE 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
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012