mishegoss

me·shu·gaas or mish·e·gaas or mish·e·goss  (msh-gäs)

n. Slang

Crazy or senseless activity or behavior; craziness.

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[Yiddish meshegas, from Hebrew mugg'; see meshuga.]

Thesaurus

Noun

1.

mishegoss - (Yiddish) craziness; senseless behavior or activity meshugaas, mishegaas foolery, tomfoolery, lunacy, craziness, folly, indulgence - foolish or senseless behavior Yiddish - a dialect of High German including some Hebrew and other words; spoken in Europe as a vernacular by many Jews; written in the Hebrew script