Nickelodeon Groan 

A reassuring groan and/or sentence used to show the audience that a character survived something they clearly shouldn't have. This is usually done to appease the censors and ensure the rating isn't artificially jacked up as a result. The term was originally coined by moderately popular cartoon reviewer "Overanalyzing Avatar".

There it is again, that stupid Nickelodeon Groan.

Nickelodeon Groan by Weegeeman November 26, 2021