Quick definition
Cuckmusique IS:
>music that oversexualizes black men (see "muh dick" in hip-hop)
>music that has lyrics about "stealing your girl" (see most hip-hop)
>music that insults/puts down white people that white people listen to anyways (see Kendrick Lamar)

Basically don't listen to shit that puts you down, talks about stealing your white women, or sexualizes black men. You know, the kind of music you would have to be a literal self-hating cuck to enjoy.