mixum-gatherum
/ˌmɪksəmˈɡað(ə)rəm/(also mixem gatherem, mix-um gather-um) informal
noun
A miscellaneous or confused collection of persons or things; a hotchpotch, a muddle.
Origin
Mid 19th century; earliest use found in John Banim (1798–1842), novelist and playwright. From classical Latin mixtum, neuter of mixtus mixed + -gatherum, after omnium gatherum.