A fork of Rural Dictionary
A character that looks moe, and doesn't behave moe
or, a character who looks mature but behaves in a cutesy way
Even though it contains the word moe in it, this also can be used in general
for any type of character whose looks are opposite to their personality/behavior.
Midori Takamine's body grew faster, in contrast to his shy and insecure self.
Tanya Degurechaff can look like a cute kid, but in reality they're a 42 year old sociopath.
Both are a prime example of what 'Gap Moe' means.
The guy who entirely change the definition of sloppy moe for me