The meaningless typographical gibberish used by cartoonists as a stand-in for unprintable dialogue (usually profanity, but sometimes just meant to convey unintelligible incoherence). The term (originally singular; plural grawlixes) was coined by American cartoonist Mort Walker, creator of Beetle Bailey, in a 1964 satire for the National Cartoonists Society entitled "Let's Get Down to Grawlixes".