"Don't call me uncle, call me brother" - A common phrase said by creepy uncles to lolis.
"You're not my brother, you're a pervert" - A loli's perception of the creepy uncle.
A creepy uncle is a type of痴漢 (chikan), over thirty years old but has a certain level of loli-con or shota-con tendencies and enjoys invading muscle bros' space. They never admit their age and just want to be a brother forever.
Note: This is a humorous and somewhat exaggerated interpretation of internet slang terms. The descriptions provided are based on fictional character tropes and should not be associated with real people.