signature rhyme
A rapper's most used line in various rap songs. Good rappers will find a way to squeeze their signature rhyme into multiple songs.
Duder 1: "How about this? 'I see your girl, she lookin my way. Later tonight I'll ride her like a sleigh'".
Duder 2: "Ha ha. Dude you used 'ride her like a sleigh' in three songs already. It's gonna be your signature rhyme."
Duder 1: "Protect ya neck!"
Duder 2: "Ha ha. Dude you used 'ride her like a sleigh' in three songs already. It's gonna be your signature rhyme."
Duder 1: "Protect ya neck!"