A Motto is a slogan or saying that sums up the character or mission of a person, corporation, or organization. Several mottos are present in the series:
- The motto of the Middle-Organization is "Fighting Evil, So You Don't Have To". In the episode "The Obsolescent Cryogenic Meltdown", this is rendered in (possibly incorrect) Latin as "Pugnantos Malos, Nehos Pugnetis"
- The motto of A.N.D. Laboratories is "Rescrambling your DNA".
- In the mirror-universe depicted in "The Palindrome Reversal Palindrome", the motto of Fatboy Industries is "Manservant Neville Serves You".
- In The Doomsday Armageddon Apocalypse, the motto of Fatboy is "uMaster Makes You the Master".