mashup

(art, slang) An artistic work that consists primarily of parts borrowed from other works, or features a mixture of genres.

(music, slang) A remix created by combining two or more songs from different artists into one piece of music.

(chiefly computing, slang) A derivative work consisting of two or more pieces of (generally digital) media joined together, such as a video clip with a different soundtrack applied for humorous effect, or a map overlaid with user-supplied data.

(Internet) A Web application that combines data and/or functionality from more than one source.