Improvius works out as "improve prosperity." Slapstickio Acmeus alludes to the type of slapstick comedy prevalent in Looney Tunes , which was famous for featuring Acme -branded merchandise such as anvils. Zygomaticus Rictus refers to the zygomaticus muscles (used in smiling) and the word rictus, meaning "a gaping grin." "In Loathing,