- crazy; insane.
Origin of meshuga
1880–85; < Yiddish meshuge < Hebrew məshuggāʿ
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Word Origin and History for meshugga
"mad, crazy, stupid," 1892, from Hebrew meshugga, part. of shagag "to go astray, wander." The adjective has forms meshugener, meshugenah before a noun.
Online Etymology Dictionary, © 2010 Douglas Harper