mixmaster noun2 •An expert disk jockey.And though self-styled Scratch protege Fraser, who will also be on hand for this concert, is competent, he isn't half the mixmaster Perry once was. — 1997 •A complex freeway interchange.Iowa Department of Transportation plans to close parts of the west mixmaster near Des Moines as well as portions of Iowa Highway 5 on Tuesday, according to a news release from the organization. — 2019 formsmixmasters