A particular nice, intelligent, respectful, responsible person.
The term originated on a Youtube video by popular content creator SMii7Y (pronounced smitty smi-ty).
bappo fucked his daddo, bappo lips no chappo, bappos a pimp and he always slappo, bappo hotelo, bappo nuked the jappos, bappo eat his asso, bappo smoked with el chappo