McKenzie frequently employs euphemisms for bodily functions or sexual allusions, one of the most well-known being "technicolour yawn" (vomiting). The film popularised several Australian euphemisms and slang terms which are still used today in the Australian vernacular (such as "point Percy at the porcelain", "sink the sausage" and "flash the nasty"). Some of the sayings were invented by Humphries, while other terms were borrowed from existing Australian slang such as "chunder" and "up shit creek" (adopted by the Australian poetry magazine "Shit Creek Review").