Why is the 'Cat Got Your Tongue' cartoon popular?

Well, 'cartoon cat got your tongue' is a kind of playful or teasing way to ask why someone isn't talking. Maybe they're being shy, or there's something they don't want to share. It's not to be taken too literally, just a way to prompt someone to speak up.

It's an idiomatic expression that suggests someone is unusually quiet or not speaking when you expect them to.

It's a somewhat odd and specific phrase. Maybe it refers to a situation in a Tex Avery cartoon where a cat is somehow involved in a situation where someone is speechless.

It might be a fanfic that plays on the idiom 'cat got your tongue'. In the context of Voltron, perhaps a character has a secret that they're trying not to spill, and their friends suspect something. So they act as if a 'cat has got their tongue' when questioned about it. It could also be a humorous take on a character's shyness or inability to speak up in a certain situation within the Voltron story.

It usually implies that someone is being unusually quiet or not speaking when they should. In a cartoon, it might be used to show a character's surprise or confusion when another character isn't responding.

You could start by looking on popular fanfic platforms like Archive of Our Own (AO3). It has a vast collection of Voltron fanfics, and you might be able to find one with that title by using the search function.

It could be that the cartoon cat is expressing some sort of emotion like joy or excitement, and sticking its tongue out is a way to show that. Or perhaps it saw something funny and that's its reaction.

It could be just a creative or humorous idea from the artist. Maybe they wanted to come up with something unexpected and eye-catching.

Maybe it's just being playful or showing a sense of mischief.

Often, a cat sticking out its tongue in a cartoon is for comical effect. It might be indicating surprise, or perhaps the artist wanted to give the cat a cute and unique look.