Noun
grawlix (plural grawlixes or grawlix) (comics)
A series of images or symbols used in speech bubbles in comic strips to indicate one or more swear words.
An image resembling an illegible scribble used for this purpose. [from mid 1960s]
A string of typographical symbols (such as "@#$%&!") used for this purpose.
Synonym: obscenicon
A series of violence-related images (such as bombs, daggers, and skulls) used for this purpose.
These include huge mosquitoes and their source, a large queen called the Vymish Mama, skinless bearlike Grawlix, plants that shoot poison darts, huge flesh-eating plants, Gith's cybernetic Fleshbinders and Soul Harvesters. Source: Internet