1991 — Havelock Nelson & Michael A. Gonzales, Bring the Noise: A Guide to Rap Music and Hip-Hop Culture, Harmony Books (1991), →ISBN, page 55:
In a decade where safe sex could mean the difference between life and death, De La sing the praises of wearing "your jimmy caps" on a track called "Buddy"; […]
1999 — Stephan Jaramillo, The Scoundrel, Berkley Books (1999), →ISBN, page 187:
Just remember, slap on the jimmy cap or be a foolhardy idiot who sweats AIDS in the middle of the night and drags themselves for a gut-wrenching test six months later swearing, Never again, never again.