Flanderization

Flanderization is the act of taking a single trait from a character and exaggerating and amplifying it more and more over time until it completely consumes the character. Most always, the trait/action becomes completely outlandish and it becomes their defining characteristic. Comedy shows are usually the ones to suffer this, due to the writers doing anything they can to get a cheap laugh from the audience, even if it means sacrificing a character's personality.

Either there are out of character personalities that are counted as against the characters we known in love, or there are personalities that will make you have no choice but to lose all of your respect you would have had for all the characters.

Although, flanderization doesn't always make the characters turn out awful. Some flanderization can make them more funnier and likable. It depends on how the character is flanderized.

Notable victims of flanderization

 * SpongeBob SquarePants (Spongebob Squarepants; Seasons 6-8; became an obnoxiously happy moronic idiot)
 * Bloo (Foster's Home for Imaginary Friends; started out as being protective over and caring of Mac in the pilot whilst being only slightly mischievous and then became a "jerk with a heart of gold" type of character in the first season, but then eventually he lost the "heart of gold" part and just became a full-blown, straight-up, outright a-hole whose jerkiness kept getting worse and worse as the show went on until he finally started leveling off around the end of the series)
 * Flippy (Happy Tree Friends; his PTSD influenzed in almost every appearance he made. This made the moments of him killing other characters while delusional progressively boring)