The best syllabic recontextualization that I know of is DJ Premier’s use of a Biz Markie vocal in “Nas Is Like” by Nas. When Biz raps the line, “I’m highly recognized as the king of disco-in’,” he pronounces “recognized” as “recogNAAAHZed” with a loud and nasal emphasis on the last syllable. In “Nas Is Like,” Nas ends the first verse, “And of course, N-A-S are the letters that spell…” Then Premier scratches in Biz seeming to say “NAAAS.”
Or you can divert expectations by dropping out most of the instruments right before the chorus, creating the illusion that we’re about to hear an explosive chorus, only to find a mellow one instead. When done right, this is a technique that can lead to some unpredictably climactic aural experiences, but it’s less formulaic compared to the other methods, and therefore it takes practice to get it right.