A sysadmin might maintain one, 6 letters
Sysadmins may run them, 7 letters
Early edition of Trivial Pursuit, 7 letters
Any member of the Sugarhill Gang, say, 4 letters
Hip-hop listener, maybe, 4 letters
Jose Ruiz of So You Think You Can Dance, e.g., 4 letters
Rap devotee, in slang, 4 letters
Rap enthusiast, in slang, 4 letters
Richard Wright's autobiography, 4 letters