Any piece by Girl Talk, e.g

• Take a mortar and pestle to
• Musical mix of two songs
• Mix of two songs into one
• Fusion of miscellany
• Any song from "The Grey Album," e.g

Wikipedia Word definitions in Wikipedia
Mashup may refer to: Mashup (music) , the musical genre encompassing songs which consist entirely of parts of other songs Mashup (video) , a video that is edited from more than one source to appear as one Mashup (book) , a book which combines a pre-existing ...