Raputation

n. Similar in appearance and definition to reputation, this term is the status of one who raps. A person with a generally high raputation is well known in rapping society and/or good at rapping, while a low raputation means they are not well known and/or they are amateurs at rapping.

"Eminem has such a high raputation! Everyone at school knows about him!"
"That guy over there sucks at rapping. He must have a really low raputation."