Green’s Dictionary of Slang

jeepers creepers! excl.

a mild oath.

1929		W.D. Edmonds Rome Haul 30: I’ll bet that’s right. Jeepers Cripus!
1938		J. Mercer ‘Jeepers Creepers’ 🎵 Jeepers Creepers, where’d you get those peepers?
1954		Oh Boy! No. 19 11: Jeepers-Deepers!
1959		C. MacInnes Absolute Beginners 57: Jeepers-creepers, [I] nearly had a fit.
1979		J. Morrow Confessions of Proinsias O’Toole 98: Wait now ... Jeepers peepers! Bingo! I know who our wee man is now.
1979		S. King Dead Zone (1980) 90: Jeepers-creepers, he went and fell in the brook.
1981		(con. 1966) P. Conroy Lords of Discipline 93: Jeepers-creepers, you must be something very special.
1999		Guardian Guide 31 July–6 Aug. 9: [advert for London Zoo] Jeepers Creepers. 1000’s of live animals.