Mishegaas vs. Tomfoolery — What's the Difference?

Variants of meshugaas.

Tomfoolery (or Tom Foolery) is a musical revue based on lyrics and music that American mathematician, songwriter, and satirist Tom Lehrer first performed in the 1950s and 1960s. Devised and produced by Cameron Mackintosh, it premiered in London at the Criterion Theatre, directed by Gillian Lynne, on 5 June 1980, where it had a successful run.

Alternative spelling of mishegoss

Foolish behavior.

(Yiddish) craziness; senseless behavior or activity

Something trivial or foolish; nonsense.

Behaviour or speech.

(Cockney rhyming slang) jewellery.

Folly; trifling.

Foolish or senseless behavior