A subtrope of Scenery Censor specific to comic style formats. Simply, a character's nudity is covered by a speech, thought, or sound effect bubble. It's usually used to imply that characters within the work are getting a full eyeful, while still preventing the audience from seeing anything.
See also Censor Steam, Speech Bubbles Interruption. Not to be confused with Symbol Swearing, where the text [...] [tvtropes.org]