TISM (an acronym of This Is Serious Mum) were a seven-piece anonymous alternative rock band from Melbourne, Australia. The group were formed on 30 December 1982 by vocalist/drummer Humphrey B. Flaubert, bassist/vocalist Jock Cheese and keyboardist/vocalist Eugene de la Hot Croix Bun, and enjoyed a large underground/independent following. Their third album Machiavelli and the Four Seasons reached the Australian national top 10 in 1995.

TISM (an acronym of This Is Serious Mum) were a seven-piece anonymous alternative rock band from Melbourne, Australia. The group were formed on 30 December 1982 by vocalist/drummer Humphrey B. Flaubert, bassist/vocalist Jock Cheese and keyboardist/vocalist Eugene de la Hot Croix Bun, and enjoyed a large underground/independent following. Their third album Machiavelli and the Four Seasons reached the Australian national top 10 in 1995.