[ hohl-proof ]
/ ˈhoʊlˌpruf /
(of fabric or an article of clothing) designed or made so as to prevent holes.
constructed so as to prevent evasion or subterfuge: a holeproof document.
- hole up,
- holed up,
Origin of holeproof
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019